A recent reel format has been circulating a lot. It depicts a split screen showing the bride's family weeping, misty-eyed, enjoying the event almost forcefully; on the other hand, the groom's family is shown happily dancing, without a care in the world. The reel itself is meant to simply be a joke, and the central concept it tries to make light of is the long-standing tradition of bidaai.

The bidaai is the staged farewell that happens at the end of most South Asian weddings. It is performed openly, ritually, often with garlands and a video crew. It structurally differs from other forms of leave couples take at the end of a wedding in other cultures, where two people step into a shared future, because here, only one person leaves and the other stays.

It is easy to picture it as something rural and receding, a custom of an older, poorer South Asia. But move to the cities and the picture does not change much. These weddings supposedly have everything a family raised on the language of progress could want: a highly educated bride with a job she has worked hard for her whole life. Dowry is a matter of disgrace; the two families would be faintly insulted by the suggestion. The toasts speak of partnership. The couple met on their own terms and chose each other, and everyone present treats this as the ordinary triumph of a modern match. Then, near the end of the night, the bride gathers her things, embraces her mother, and is driven to her husband's parents' house, where a room has been prepared for her and where she will now live. Nobody finds this worth remarking on. It is simply what happens next.

This is the moment I want to slow down and look at. We have built, across South Asia, an unusually rich vocabulary for what goes wrong in a woman's life. Dowry. Domestic violence. Son preference sometimes leading to female infanticide. The gap in what families spend on a daughter's schooling. Each has its acronym and its campaign, its line item in a development budget, its evening of grim statistics on television. But they tend to circle the same omission. Beneath the symptoms we treat in isolation lies an arrangement so ordinary it is rarely classed as an arrangement at all – that a woman, on marrying, leaves the family she was born into and enters her husband's. His house is where she will live. His parents are the ones she will age alongside and eventually nurse. Demographers call this patrilocality. Most of us call it nothing, because to name a thing, you first have to notice it.

I am not the first to use the word. Economists reach for it constantly, because once you put patrilocal residence at the centre, a great deal of otherwise puzzling behaviour clicks into place. When a daughter will spend her productive adult life sustaining another household while a son stays and supports his parents into old age, sons begin to look, in the brutal arithmetic of an insecure life, like a pension and daughters like a transfer to a rival firm. The economist Seema Jayachandran has argued that norms such as patrilocality, which make sons the primary source of old-age security for their parents, are among the most powerful explanations for the male-skewed sex ratios of India and China and for the strikingly low rates of female employment across much of the region (Jayachandran, 2015). The skew is not evenly spread. The patrilineal and patrilocal grip is historically tighter in the north of India than the south, which is one of the standard explanations for why gender inequality runs deeper there, a pattern visible in census figures stretching back more than a century. The financial mindset is captured in two sayings she quotes, an Indian one likening raising a daughter to watering a neighbour's garden, and a Chinese one calling it plowing someone else's field. Amartya Sen's missing women, the tens of millions absent from the population who should statistically be alive, are in part an accounting of who was expected to stay and who was always going to leave.

What makes the concept of bidaai so enduring, and at the same time remain invisible, is how it is woven into the grammar of ordinary love. It has receded into the category of how things are without further interrogation. The mother weeping at the door is not enforcing a system. She is doing what was done to her, with tenderness, often with genuine grief, and the tenderness is part of how the thing renews itself.

Consider what comes into focus once we accept this premise. The question of why families have historically invested less in a daughter's education stops being a story about backward attitudes and becomes a story about incentives. Research on India has found that the desire for sons translates into measurable gaps in what children receive, both because families keep having children until a son arrives and because of how resources are divided once he does (Congdon Fors and Lindskog, 2023). If the returns on a daughter's schooling will accrue to the house she marries into, a poor family weighing scarce pennies is not being irrational when it hesitates. It is responding, accurately, to a world in which she leaves.

Surely, the objection runs, somebody has to move. A marriage joins two people, and one household cannot contain four parents and assorted siblings indefinitely; patrilocality is just the practical answer a crowded society arrived at. There is something to this. The arrangement is not arbitrary, and in a world without state provision for the elderly or the means to set up an independent home, it can be necessary.

The same lens transforms the question of violence in the marital home. We tend to discuss it as a problem of bad husbands and worse mothers-in-law, a matter of individual character. But character does not explain the particular architecture of the danger: that a young woman is most exposed precisely where she has the least standing, in a household assembled before her arrival, governed by relationships she did not form, and with no kin within shouting distance. Patrilocality does not cause violence directly. It simply configures the conditions under which violence becomes more possible and less visible. The woman who can walk home is far less exposed than the woman whose home, by the terms of her marriage, is now the very place she would need to flee.

The quietest casualty is perhaps the one with no campaign and no acronym. It is the gradual erosion of selfhood that researchers have only recently begun to document with any precision. Studies of patrilocal households across South Asia find that women who relocate at marriage report markedly reduced autonomy: less say in economic and health decisions, narrower freedom of movement, and a daily life structured by norms set within a household they joined rather than formed (Khalil and Mookerjee, 2019). The psychological toll of this repositioning is increasingly legible in the literature, with the quality of a woman's relationship to her husband and, crucially, to her mother-in-law emerging as a significant predictor of depression among co-resident wives (Gopalakrishnan et al., 2023). What women themselves describe, in the qualitative record, is hard to quantify. But it is consistent with a sense of having become a secondary figure in a narrative that was already underway before they entered it. This is not depression in the clinical sense alone, though it can deepen into that. Each of these injuries has been studied again and again, and we can keep refining how to make the husband's home a safer place for the new bride. But as long as the underlying structure holds, and she remains the one who moves, we are treating the symptom rather than the cause.

It would be comforting to file all this under the past, a rural residue on its way out with the next round of literacy statistics. But the wedding I began with sternly refuses that comfort. The educated, dowry-free, love-married family has revised almost everything about the institution except its load-bearing wall. This is the modern bargain. And, one can even say that at least the dowry was negotiable. The direction of the move is not even on the table.

I want to be fair to the obvious objection, because it is a good one. Surely, the objection runs, somebody has to move. A marriage joins two people, and one household cannot contain four parents and assorted siblings indefinitely; patrilocality is just the practical answer a crowded society arrived at. There is something to this. The arrangement is not arbitrary, and in a world without state provision for the elderly or the means to set up an independent home, it can be necessary. But it presents a false economy of options. The choice was never confined to her family or his. The couple might equally establish a household of their own, a neolocal arrangement in which two people starting a shared life begin it on neutral ground rather than inside an existing hierarchy. Second, the premise that elder care requires a resident son is itself contingent, not fixed, and we can watch it dissolve where the underlying insecurity is addressed. When rural China introduced old-age pension programmes, the evidence suggests that access to formal social insurance measurably slowed the rise in the male sex ratio at birth: parents with a pension were less dependent on sons, and the preference for sons loosened accordingly (Ebenstein and Leung, 2010). Patrilocality, in other words, is held in place by a problem that policy can relieve.

Is the leaving natural, then, in some way that puts it beyond questioning? The most useful answer is to look at the corners of our own region. It shows that patrilocality has never been the rule, nor is it a utopia that needs to be imported. In the hills of Meghalaya, the Khasi, Garo and Jaintia have held for generations to a matrilineal order. Descent and the family name pass through the mother; the husband moves into the wife's home; and the youngest daughter, the khatduh among the Khasi, inherits the ancestral property and carries the duty of caring for aged parents (Roy, 2016). A child there grows up watching the man arrive, and the woman stay, and finds it as unremarkable as the rest of us find the reverse. Looking around us serves as evidence that the arrangement is a choice and has always been one.

It’s equally important to understand that matriliny in Meghalaya is not the mirror-image paradise a hurried feminist reading might want it to be. Custodianship of land is not the same as command of it; the khatduh often cannot sell without the consent of her maternal uncle, real authority over clan affairs has long rested with men, and women have been kept off the traditional village councils altogether. The lesson is not that reversing the direction of the move dissolves male power. It is rather that the direction of the move is detachable from everything we assume it is fused to.

Sri Lanka offers a quieter version of the same proof, in kinship traditions historically more bilateral than the subcontinental norm, where customary law recognised a form of marriage in which the husband joined the wife's household rather than the other way around (Yeung, Desai and Jones, 2018).

The deepest challenge to our assumptions, though, comes from outside the region entirely, from societies that began the twentieth century roughly where we did, equally patrilineal and patrilocal, and then refused to stay there. South Korea is the cleanest case. For most of the twentieth century, Korean family life was organised around the hoju, a household registry that fixed a male as the legal head of the family and routed identity down the paternal line, a Confucian inheritance reinforced under colonial rule. In 2005, the Constitutional Court found it incompatible with the constitution's commitment to gender equality, the National Assembly voted it away, and on the first day of 2008, it was replaced with a register built around individuals rather than a patriarch (Koh, 2008).

Across East Asia, the formal scaffolding of the patriarchal household was legislated away within a generation or two. Japan dismantled the i.e., its patriarchal stem-household, in the 1947 revision of its Civil Code, abolishing male household headship and the eldest son's monopoly on inheritance in favour of equal inheritance and a conjugal model of the family (Steiner, 1950). China's Marriage Law of 1950 set out, at least on paper, to break the patriarchal marriage customs that preceded it (Diamant, 2000).

What made the difference was not law alone. The social scientist Dr Alice Evans has argued that East Asia escaped what she calls the patrilineal trap chiefly because rapid, labour-hungry industrialisation drew young unmarried women into factories in such numbers that the old village anxiety about a daughter leaving home simply lost its grip, all at once and for everyone (Evans, 2021). The unsettling corollary, and the one that should give the region pause, is her finding that in South Asia, economic growth has often reinforced rural patriarchy rather than eroded it.

The interesting question then is not why East Asia managed it. It is why the conversation that made it possible has barely begun here, and the answer returns us to where we started: you cannot reform what you have not yet agreed to call a thing.

I have no programme to offer at the close, and I distrust the essay that arrives at one too neatly, because the honest first task is so much smaller and so much harder. It is simply to notice. To sit at the next wedding, through the speeches about partnership and to watch the bride gather her life into a car at the end of the night, and to let the question form: why always her, and based on whose decision. The grief at the door is real, and I would not take it from anyone. However, this grief, instead of resolving, renews each time we agree that the most moving part of the day is the part where she leaves.

Tasnim Odrika is a contributor writer for The Daily Star and a 2024-25 Chevening Scholar from Bangladesh. She can be reached at [email protected].

References

Congdon Fors, H. and Lindskog, A. (2023) 'Son preference and education inequalities in India: the role of gender-biased fertility strategies and preferential treatment of boys', Journal of Population Economics, 36(3), pp. 1431–1460.

Diamant, N.J. (2000) 'Re-examining the impact of the 1950 Marriage Law: state improvisation, local initiative and rural family change', The China Quarterly, 161, pp. 171–198.

Ebenstein, A. and Leung, S. (2010) 'Son preference and access to social insurance: evidence from China's rural pension program', Population and Development Review, 36(1), pp. 47–70.

Evans, A. (2021) 'How did East Asia overtake South Asia on gender?', The Great Gender Divergence. Available at: https://www.ggd.world

Jayachandran, S. (2015) 'The roots of gender inequality in developing countries', Annual Review of Economics, 7, pp. 63–88.

Khalil, U. and Mookerjee, S. (2019) 'Patrilocal residence and women's social status: evidence from South Asia', Economic Development and Cultural Change, 67(2), pp. 401–438.

Koh, E. (2008) 'Gender issues and Confucian scriptures: is Confucianism incompatible with gender equality in South Korea?', Bulletin of the School of Oriental and African Studies, 71(2), pp. 345–362.

Gopalakrishnan, L., Acharya, B., Puri, M. and Diamond-Smith, N. (2023) 'A longitudinal study of the role of spousal relationship quality and mother-in-law relationship quality on women's depression in rural Nepal', SSM - Mental Health, 3, article 100193.

Roy, A. (2016) 'The land where women prevail: Khasi matrilineality and emergent social issues in Meghalaya', Anudhyan: An International Journal of Social Sciences, 1, pp. 84–91.

Steiner, K. (1950) 'The revision of the Civil Code of Japan: provisions affecting the family', The Journal of Asian Studies (Far Eastern Quarterly), 9(2), pp. 169–184.

Yeung, W.J., Desai, S. and Jones, G.W. (2018) 'Families in Southeast and South Asia', Annual Review of Sociology, 44, pp. 469–495.

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