If I wanted to be clean-shaven all the time, I would have to shave every day, and I used to. But now it depends on whether I want to grow my beard and how long I want it to be. Usually, I'll shave every few days to keep it under control.
Like once a week lol I don't have facial hair yet :s I only get a bit of a wannabe mustache shadow (not even tbh I just call it that to feel better lol) and maybe some side burn wannabe thing going on lol
I have a beard so I only trim that a couple of times a week to keep it even. Before when I had stubble though, it was every other day to keep it at the length I liked.