A 16-year-old male needs sex for sanity as he needs food, water, or air for survival. For all of human history, there have been families and clans to guide us to adult roles and help us find mates while we’re still young. Anyone would have taken it for granted that in return for their contributions and obedience to the customs of the tribe, the tribe would in turn give them a place.
In mass societies, however, there’s always been a steady stream of losers who get nothing in return. If we tried to imagine a chief denying the tribe’s young men sex and status, we know he wouldn’t be alive much longer. For a tribe to exist in peace the needs of most of its people must be met. When there is no bread, there are bread riots. When men have no hope of wealth, family, or even of getting sex they withdraw their loyalty to the existing social order and turn to desperate measures. Predictably, across time and place, ‘losers’ will defect.