Jeff AtwoodI have asked probably 100 adults in roughly my age range if, as teenagers, their parents ever talked to them about sex and literally only one person has ever said yes.
SpaceLifeFormI can concur on this point.
Back in the olden daze, it was taught in school.
I had already understood by around age 8 by reading medical books.
Why those books existed in my childhood home remains a mystery to me to this day.