I've been called upon to do computer forensics for parents who suspected their kids were involved in something counterproductive. I stopped doing that work a long time ago because the images I found were too much for me to bear. Thus, from my perspective, your statement is incredibly, almost unbelievably quaint. It's almost 30 years out of date. Kids today, IMO, tend to get their earliest form of a sort of sex education by clicking on a link. They are immediately shown various body parts being forced into other body parts. Online porn is so pervasive, so easy to get, that I'd be surprised to meet a 12 year old who hadn't seen enough of it to know far more about the way things work mechanically than I knew by the time I concluded college.