Althouse 

"I don't see why there should be any need to say anything at all about genitalia in kindergarten and first grade. To force the subject, with open discussion about how children think about their genitalia, strikes me as wrong — to the point where I'd say it's objectively wrong. It's at least objectively true that some of the parents will feel that it's wrong to have kindergarten and first grade lessons teaching children about genitalia and how to think about them."