I have female friends who are more into rough hardcore porn videos than I am, but perhaps I attract atypical women!
Porn is not the only way I get off when alone - so I don't think I'm addicted - just thinking about a female friend, or sharing an idea with her is often sufficient.
I discovered porn well before 18, in a pre-internet world, so I think it's inevitable that will happen. I was curious about sex anyway, and had read a lot about it, and it's hard to deny a sexual being their sexytime! Better to emphasise to kids the difference between fantasy and reality. What happens in movies of any kind is generally more fantasy than reality anyway.