Your first sentence is completely wrong.
Your straw man at the end is stupid bad-faith bullshit. The vast majority of teens are no longer 13.
There are other factors, of course, but getting treated like shit, being constantly told you're a moron, having your sex life criminalized, constantly being told you'll get groomed and preyed on because you're an idiot, getting zero respect, and having no legal rights is a major cause of the mental health crisis (which happened simultaneously with the change of paradigm from teens = young adults to teens = large children)
Oooooo. The old "anyone who disagrees with me is a pedo" argument.
Clever.