I'm sure teens of all times have had access to porn. I got it from a home built pay TV decoder in the 90s (sound didn't work but I didn't care so much lol)

And yes extreme types were already thing then too. Bukkake, gangbangs, all my friends in school saw these things. I'm pretty sure most of them have never done those practices in their lives. They're all pretty boring family men now. And they are respectful to women. Society is doing fine.