I think when you're looking for people to interview, you want to make it fair and honest. You're not just bringing people on so you can beat them up or, you know, make fools out of them or something.
Before the child ever gets to school it will have received crucial, almost irrevocable sex education and this will have been taught by the parents, who are not aware of what they are doing.
God knows how many things a man misses by becoming smug and assuming that matters will take their own course.

