Sex education has been taught in schools for at least 40 years that I know of. A little over 2 decades ago it changed from just mechanics to "right and wrong" situations and was introduced at "Barney" level ages. Part of this education includes what is acceptable and what is not for both boys and girls. It is taught using age appropriate material. When the grade school my children attended planned to add curriculum for younger children the first thing the school did was call a meeting for all the parents so they could "See" what would be taught. I found the curriculum to be spot on and not even remotely sexual. The school gave the parents the option of having their children take a library class instead of the sex ed class if the parents where offended. I was shocked by the number of parents at the meeting who were so "scared" of the curriculum they signed up for the library class. It was like Barney talks about good touch and bad touch.
@steama - I agree that in some cases the parents are the "WE" who are not comfortable with the topic and are placing their children in harms way because of their fear of the topic.
Many years later I had just finished working out in the garage and was walking through my living room with sweatpants on and my shirt off. One of my daughter's junior high school friends was sitting in the living room when I came walking by. When I stopped long enough to say hello she said "Mr. Highness you are making me uncomfortable because you are not wearing a shirt". My first thought was anger based "If I want to walk around without a shirt in my own home and it makes you uncomfortable you are welcome to leave". My second thought was "Hold on .... There's something I'm missing here since I've known the girl who is uncomfortable since she was 10 and we consider her like one of our own daughters". So I told her I was sorry I made her uncomfortable, took my shower and put a shirt on. Later, in private, I asked my daughter what the shirt thing was all about and she told me "We're taking a sex ed class and part of the class this week included ways men desensitize potential abuse victims. It included desensitizing the victim to various states of undress and can start with something like not wearing a shirt. We were told in the class not to take this lightly AND to practice standing up for ourselves when the opportunity presented itself". Did I like not being able to walk around my own home with a shirt off...Nope. Was I glad the young lady was strong enough and comfortable enough with me to "practice" like that...ABSOLUTELY.
Maybe now the parents who were so prudish will realize the value of facing their fears so their children may be able to protect themselves. Maybe now these topics will be put into practice because they are not only gaining acceptance but are being made socially acceptable/expected. I hope so......