a porn ban is literally impossible. the government couldn't even stop alcohol with prohibition and everyone just kept going to speakeasies and getting their drinks on the black market. there was a sharp decline initially, but then things gradually started returning to normal. same thing would happen here except even faster if they really cracked down on all porn sites and forced the id issue. you'd see a bunch of people who didn't bother before learning how to use vpns, torrenting, downloading videos, etc.
United States