You’re wrong. Young adult rebellion has long existed, but was difficult to practice given social, political and economic norms (think of the story of the Prodigal Son). What’s changed in our modern day is the ability of teen angst to be so thoroughly destructive. For that you simply need to eliminate any distinction between wrong and right. School children in one study were hard pressed to determine what was and wasn’t moral or ethical across a variety of fairly straight forward issues.
The cause: radical homosexual and sexual activists who’ve been working on our kids through government schooling for over a century. Once you learn how not to judge you cannot judge. It’s all good.
No-—there was little rebellion-— only in the places of very strict control-—most boys-—were working by the time they were 14-16. Ben Franklin by the time he was 12. My father was working by the time he was 17 and off on his own. Children matured by the time they were 18-—they never had this extended childhood to 26 or 30-—living in mom’s basement, being supported by their parents. Carnegie started working when he was 13. Mark Twain by the time he was 13 or so also.
My mom was on her own by 17 also. They did not “rebell” they grew up and were adults by 18.
There was childhood, then you were suppose to work and support yourself. People didn’t have time or money to goof off and be non productive. They died.