My take on that is to ask the question: when do boys know they are men? Girls know they are women when they have their time of the month and other women come to them teaching them about their life to come: mothers, wives, culture makers.
Men? At what point? Once and for eons boys would be sent off into the wild - if they came back, they were men. They became warriors and hunters (and later farmers) that fed and protected the tribe. They participated in shows of force against enemies - death was rare.
Later, when men became “less” valuable, the boys were sent off to war - many died, but those that returned were men. Other men came to them and taufht them about their life to come : warriors, hunters, fathers.
Now boys can join the military if they are fit enough, if they meet other qualifications. But most don’t see any point as there are too many other things they can do. Unfortunately, there are few other trials that equal the survivability challenge - only fishing crab in the Bering Sea comes to mind.
No one teaches boys anything about their lives to come. As a result many males remain boys for most of their life, lost in drugs, criminality, identity issues, and other anti-social pursuits. Each time a boy fails to know he is a man, society becomes weaker, the culture begins to rot. As the weakness and rot progress, the entire society begins to collapse and eventually disintegrates.
We now are on in that later process.
Fixed it.