Every premodern society known to anthropology marked the transition from child to adult with a ritual. The forms varied wildly — circumcision, vision quests, walkabouts, debutante balls, confirmation, bar mitzvah, university matriculation, military induction — but the structure was remarkably stable. Arnold van Gennep, in The Rites of Passage (1909), identified the three-phase pattern: separation from the prior status, a liminal phase outside ordinary social categories, and reincorporation into the community with a new status. Victor Turner deepened the analysis by attending to what happens in the liminal phase: the suspension of normal hierarchies, the intense bonds formed among initiates (communitas), the encounter with mysteries and ordeals that mark the initiate as transformed. The ritual was not decoration. It was the mechanism through which a society transferred adult status, encoded its values, and inducted the next generation into its specific way of being.

Modern wealthy societies have largely dismantled these rituals or stripped them to symbolic husks. The high-school graduation is a passage marker without an ordeal, a separation, or a meaningful liminal phase. The eighteenth birthday confers legal majority without ceremony. The college diploma marks the end of formal schooling but no particular adult capacity. Religious confirmation persists in many traditions but increasingly as a ceremony attended by family rather than a transformation noticed by the community. The bar and bat mitzvah have proved more durable in part because they preserve a real test (Torah reading, dvar Torah) and a real audience. The cumulative effect of ritual erosion is that young people enter adulthood without a clear marker, recognized by no one in particular, often unsure when or whether they have arrived.

The question of what we kept and what we lost cannot be answered with simple nostalgia. Many of the lost rituals were cruel. Female genital cutting in West African and East African traditions, the more violent forms of male initiation in highland New Guinea, the hazing rituals of military and fraternal orders — these are not losses to mourn. The contemporary pushback against initiation is partly a justified rejection of harm. But the elimination of cruel rituals has not been accompanied by the construction of meaningful replacement rituals. The result is a kind of ritual vacuum, into which informal markers have rushed: the first drink, the first sexual experience, the first paycheck, the first arrest, the first leaving home. These markers occur, but they are private, unsupported by the community, and provide no public confirmation of new status.

Law 5 — Revise — is operative because the rituals never really disappeared; they were privatized and degraded. The functions a coming-of-age ritual performs — telling the young person they have changed, telling the community to relate to them differently, supplying a story about what adulthood is for — are still needed. Where formal rituals have eroded, informal and commercial substitutes have appeared. The American sweet sixteen, the Mexican quinceañera (which has survived and adapted), the Japanese seijin shiki, the gap year and the European Erasmus year, the spring break, the bachelor and bachelorette parties. These are uneven in their seriousness, but they are doing some of the work old rituals did. The question is whether they do enough of it.

What strong rituals provided that weak ones do not: a clear separation from the prior life (not just an evening out, but a substantial removal); a liminal phase with genuine difficulty (not just discomfort, but tests that can be failed); a community of fellow initiates (communitas); recognition by elders who are not the initiate's parents; and a story about what the new status means and demands. Modern equivalents that come closest tend to involve military or wilderness contexts — basic training, Outward Bound, NOLS, certain religious retreats — which is suggestive about what the elements actually are. Where these are absent, young people often construct their own substitutes, sometimes wisely (long-distance hiking, gap years abroad) and sometimes destructively (initiation by drug use, by sexual conquest, by criminal initiation in gangs).

Michael Wessells's work on former child soldiers and on community-based reintegration has documented one of the more disturbing modern phenomena: traditional ritual reintegration of young people whose passage has been brutalized. Sierra Leonean and Mozambican communities developed cleansing ceremonies to bring former child combatants back into ordinary life, and the rituals appear to have worked where Western trauma therapy did not, in part because they engaged the whole community in declaring the young person changed back into a civilian. The ritual mechanism is not a primitive curiosity. It is technology for managing transitions, and abandoning it has costs we are still tabulating.

A society that has dismantled most of its coming-of-age rituals and not built replacements is asking each young person to invent their own. Some manage it. Many do not. The current young adult mental health crisis in wealthy countries is overdetermined, but one ingredient is the absence of a clear point at which the young person has become an adult in the eyes of the community. Without that point, adolescence extends indefinitely, and the question "am I a grown-up yet?" becomes a private rumination instead of a public fact. The collective revision project here is not to revive specific traditional rituals but to recognize that the function they performed is still needed and to build practices, public and serious, that perform it.