Stubbly facial hair is cool from about 15 - 25. After that it just makes you look older and unclean.
I'm in my 30's now but if I'm clean-shaven and use a little moisturiser I can probably pass for mid-to-late 20's.
I actually have a foot-long goatee beard (total surface area on skin is only about 1 - 2 square inches) and I keep the rest of my face bare.
If I go 3 days without shaving, I can still whip a razor blade over my face, but for my moustache it has to be a very new blade otherwise it's like jabbing at my skin. Those single and double-bladded razors are horrible on my moustache -- I need tripple blades. After a week I'd use an electric trimmer (or scissors) first.
So anyway I'm half-considering getting permanent laser hair removal on my face, starting just with my moustache to see what it's like before I'd do my entire face.
I can see a few advantages:
(1) Looking younger and fresher because you never have stubble
(2) The convenience of not having to shave
(3) Your partner not being reluctant to kiss you because you won't give them sandpaper herpes on their face
(4) Never buying or using razors ever again (although any money saved will probably be greatly outweighed by the price of the laser procedure)
Of course the downside is that if you ever want to grow a beard in the future, you won't be able to.
Point No. 3 can be a big one if your significant other has particularly supple skin.
Has anyone here had laser facial hair removal, or is considering it?