Oh that. Being educated on sex in general is better from an early age. That way they won't be so-in-the-dark about it later on as they get older and their bodies change. And they won't feel so uncomfortable about it either. Sadly our current society teaches children otherwise, and religion continues to support the claim that sex is blasphemous, but a necessary evil in order to continue the spices. Poppycock on both those claims, I say. But whether sex is viewed as good or bad is a topic for another thread.
Don't get me wrong, I like seeing legs as much as the next man. but when we were kids you had to work to find nude images of women i.e. buy a playboy or steal a penthouse. Now it's all free on the internet which kind of kills it. Sort of that notion that if you cross over that line you know you had to be ready to put in work, you had to have a place to stash your dirty magazines etc. Now in the digital age it's almost like nudity and imagery of the like is just another commodity, and this has become increasingly obvious with the amount of porn that's flooded the internet.
I recall seeing a study conducted c.2003 in a book I'd read stating that UFO's were the number 1 searched item on the internet followed by porn, so this comes as no shock to me at least. With kids having mobile devices, one has to think they'd start watching porn at an early age. (Not all but some).