Just a quick note - (in a hurry lol) - I'm with the folks who noted this doesn't sound like it's all *that* young. It's not going to hit every child at this age, but there have been quite a few kids in my children's classes who started showing interest in the opposite sex in a non-friend sort of way from 4th grade on up. It was just a smattering here or there of kids with no idea really what they were talking about, but by 5th grade there were definitely kids who were interested and aware.
I'm probably not saying that well - sorry I had to post and run so quickly!
Best wishes,
polarbear
