You pay with more and more time spent watching porn, digging into an addictive cycle that, by definition, repeat itself.
Porn is free indeed, but is pretty bad for you.
I mean a do too, but try to not wank for at least a month, you'll find it hard to do. At least for me that's the case. And I do work, I do socialize at least twice a week.
I don't think that's true for the majority of people tho. I personally don't have that issue at all, I actually watch less porn now than I used to (Was once a day at some point, now it's once every few days) and it's not like I'm getting old or anything, I'm still a teenager. And I have one friend who does it multiple times a day, cause he's bored but everyone else I know doesn't.