I need some good points as to why sex education should be taught in schools, this would be part of my 5 paragraph essay on the topic.

Leaving
sex education up to the parents is a suggested alternative to having it taught in schools. But,
let's face it, many of the parents don't know very much about the subject themselves--except
they have found out that having sex leads to having a baby. They know that much for sure. But
how many parents could explain how the spermatazoon penetrates the ovum and forms a zygote in
the uterus, or all the other biological facts connected with this complex subject? One parent in
a hundred?