How Young Does It Start for Men or Boys?

Porn is very novel, that a man can see more naked women in a day than he would have seen in his lifetime previously. It's not that I haven't seen moments of it, of course, but it's so fake. We're unfit for purpose, ancestrally, with what we are used to, to what we can have access to now. As soon as boys hit puberty, they're thinking about sex, that's all that they're doing. So, I wonder what the long-term effects of porn are going to be. One of the questions that's being asked at the moment is why hasn't Young Male Syndrome occurred?