Good for him.
Porn is extremely addicting and extremely hard to break because you are exposed to it everywhere and are only a click away online.
That's where the problem lies. Not that many years ago if you wanted it you had to embarrassingly walk into an adult book store, hoping that no one you knew drove by and saw you go in. And the magazines cost a small fortune so most kept their collections small.
Today zillions of free picks and videos are only a click away, and much much harder stuff than you saw back in the 1970s or 80s at those book stores. And most can be seen without restriction by kids.
It’s also extremely disgusting.