Nobody older will tell you this, but they were all dicks in high school too.
Really? Doesn't seem that bad-my mom and dad said there were many shenanigans back in their day, also taught me the notes on smoking and public 'settling of qualms' (ie open fistfights which stop when blood is shed or one backs out; like the duels of old?) and lectured me on 'this is not a good thing to do and instead do "x/y/z" or other alternatives...'
So I don't do that and stuffs are happy.
Mm... the thing to take away from that, though, in the context of this discussion, is that stuff was happening back in their day enough that they
had notes to teach you. It really is more or less how PoH and co. has stated. There
is the occasional one (like your parents) that will actually fess up about what they got up to, but there's definitely a lot that don't. I've personally seen more of the latter than the former, for what little that's worth.
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Older (mostly older, anyway) folks have been decrying moral decay basically since the earliest of written history. If I'm not misremembering, there was even crap like that involved with some of the verbal traditions that go back even further. And yet the next generation comes along and gets by well enough that they live to start doing the same thing. I'd say it makes one think, but there's really not terribly much to think about. The nostalgia filter is strong with most humans, heh.