Hmm I'm 31 and my first birds and bees talk in school was 4th grade. Mostly oit was about the chages that were about to occur and they passed around tampons and pads ect. But there was some mention about what it meant to and that it was for making babies someday. Of course a lot of parents opted their kids out of that day I think.

Then Junior high we had a whole Quarter of a sex ed class. They encouraged people to ask anything. Some of the questions that were asked, geesh, lol.

Maybe it's because my mom's a nurse and they didn't try to keep me inocent and answered questions ect. I was given a birds and bees book when real little that included pics of babies being born.