Teens are the horniest little bastards on the planet and teens have been making their own decisions since our species started living that long. Parents just try to keep them on the rails until they grow up(at about age 35) And the law just tries to prevent too much abuse(which is gonna happen anyway)
There are a lot of gray areas.
We haven't had any women in the locker room for a long time(wink wink nudge nudge)
Men are like dogs. They will get into all sorts of disgusting stuff, roll around in it and enjoy it.
Like you girls, I was a virgin until I was 18. We talked about sex but never did anything. And if we did we never told anybody. That was the best policy then and it's the best now.