Lol! I also have fine hair, making it that much thinner. I've had a moustache since I was 21 (long ago). It started out kind of thin but it looked okay ... now I'm much older and it is more robust, but not 1/10th as bushy as Bolton's! Lol!
I once grew a beard in my early 30s, I looked about like a Hell's Angel with a scrufty mess of a beard, that lasted through about 4 months of hoping it would fill in on my cheeks and I finally gave up on it. I'll never try that again. It's not all bad, my 5 o'clock shadow from Monday shows up late on Wednesday. I spend half as much or less on razor blades/shave cream as the next guy, and the cheap disposables work great, last quite a while.