I haven't parented a teenager yet, but I remember doing all sorts of dumb shit myself. That's why I aim to teach my kid this stuff before he becomes a teenager ;)

That's what I feel is the hardest thing about parenting: coming to terms with the fact that you cannot guarantee nothing will ever happen to them. You have to try your very best, but there's no guarantee.

As for adults not really understanding these things, that's also an education problem. We can't just shrug and say that nobody really understands this, therefore educating people isn't really a solution.