Usually I expect people to take responsibility for themselves. Unless you're raped, it's difficult to blame someone else for your own choices as to who and what you allow in your body. However, children are different. We can't hold minors to the same standard. First, there's the law. Second, it's always in the adults control what happens in that encounter (again, not talking about rape or coercive violence). Third, it is a fact that the decision-making areas of the brain aren't fully formed in people until the mid-20s. Teenagers simply are wired to make poor decisions; they aren't mature enough to navigate the complex psycho-sexual minefield of adult sex, disease, protection, personal agency, restraint, and consequences. Forgive me if I'm wrong here, but there was a time when you couldn't even rent a car until you were 25, I don't know if that's still the case. But it's because young people make bad choices simply because they aren't fully cooked. They'll mature in time, but what they don't need is pressure from predators who hate themselves and want to see others destroyed along with them. If you were okay with yourself you wouldn't want to put anyone in harm's way. You'd have respect and consideration for your fellow humans, even if they weren't taking the best care of themselves. You wouldn't take advantage simply because you could. It has to do with character and being a decent person. What do you do when no one's looking?