You'd think kids would have the common sense to try to hide the stuff they do. When I was in high school, I did some heavy stuff but at least I had the common sense not to go around bragging about it. It's the damn illusion of infant immortality. In the cartoons and media we watched growing up, characters died all the time. Nowadays, character death never happens. Even The Lion King isn't capable of introducing kids to the concept of death early on. It becomes a foreign concept and therefore something that can never happen to them. They're never in danger and any amount of sex and drugs will not change that.
Then again, maybe kids are just idiots who don't give a fuck. Your call.