LOL harrysgran!
I was a teenager in the 60s and I remember it as sort of a mixed bag - some kids having sex , others having it "other ways" (the technical virgin thing) and still others practicing the strictest of traditional morals. Maybe that's true in any era though.
And TBH, as I recall, the girls who stuck fully to traditional morals didn't get dates - at least not at my high school. But I don't know if that was true everywhere.
By the same token, I'm sure some kids had "all" the information they needed and others were more confused. It was an era of transition, I think. As a PP said, the Sexual Revolution didn't reach every area at the same time. I don't think it reached every family or individual either. So, IMO, it's hard to make generalizations about how things were. Maybe we can about the early 60s, which, to my mind, were much like the 50s. But the middle and late 60s were more a time of change.
Anyway, by the time I was in my 20s (in the 70s), yeah, I knew some women who were having sex more randomly, yunno, like guys, but just a few. But love didn't lead to marriage so easily anymore, so, yeah, some girls ended up having more sexual partners than their moms or older sisters would have cuz they had more than one "love" before they found someone to marry. I still knew some women who married their first though. I'm not so sure about the guys, LOL!
So, anyway, if people are having 6-12 now, it doesn't surprise me, except that I thought AIDs had made people more cautious. Guess not.