The movie Animal House was in 1978. And even though it was satirizing college frat life, the attitude of treating it with humor extended to socially "enlightened" HS students. Sex, booze, and marijuana were considered experimenting in that environment. Girls and guys knew what situations to avoid.
Girls and guys knew what situations to avoid.
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I am just a few years older than Kavanaugh, and this is exactly how it was at my Catholic high school and college.
That is not to say there wasnt plenty of under aged and excessive drinking. But for the most part, there were still lines that did not get crossed. And generally, everyone knew who were the ones that did cross them.
I think that is far less the case today than it was 35 to 40 years ago.