Everyone knew who was gay by 5th grade.
Nobody cares who you bang anymore. Parents should definitely have a say in how sexuality is taught to their children.
Sex-ed, slave trade, civil rights movement, etc was all part of my curriculum growing up and guess what, my classmates were diverse and cool as fuck with each other.
No kids yet, but no way sending mine too public school at this rate.
We didn't get the gay talk until early high school and it was pretty dry. We had a top rated "male" ice skater at Aloha High and he couldn't have been gayer if he tried. He did get some sh*t about it, nothing physical. Definitely don't need to be talking about any sex in third grade.
I knew I was hetero as far as I can remember. I don't get the "I found out I was gay in high school" stories. I did know many men and women who were the very definition of asexual. Just no interest and they didn't get that all we wanted to talk about was hot women.