I was 12 in the 70s, and don't remember any boys talking to girls like this. If they did, they'd probably get a slap in the face, if not by the girl then by the teacher if overheard.

One big difference is that there was no access to the sort of degrading pornography that is just freely available today. A 12 year old boy in the 70s might be able to get his hands on a Playboy or maybe even a Hustler but it took some real effort and those magazines were tame compared to the porn today.

Sure, but there were sexist ads everywhere including the TV; every pub, car repair shop etc. had at least one erotic calendar hanging in the public and so on. There's way more, please don't try to say that there is more sexism today than there was in the 70's.

What makes you think they turned out fine? Considering all the high-profile sexual harassment issues over the past few weeks, I get the feeling that many of them did not "grow out of it".

That's a very, very small portion of the population. It's also the part of population known for its crazy parties, abundance of money, drugs and alcohol.