I have been a nail biter most of my life. Recently, I stopped biting them. (Well, I stopped biting nine of them. I still bite one pinky. :-)
I suppose I should paint them, for the fun of it. I do think nail polish is pretty.
But every time they get long enough to look good polished (not VERY long, mind you, just long enough) I start feeling like they're kind of in the way. It's harder to get a good grip on a jar I'm trying to open. It's harder to "dial" a phone number. It's harder to pick up little things.
So I end up cutting and filing them to a pretty short length.
Is it because I'm not used to having a nail at all and so they feel conspicuously present? Maybe I just need to get used to having fingernails.
When I clip them I start thinking maybe I should just go back to biting them (teehee). It was one less thing to do. (I would bite them without even realizing it, it was such an ingrained habit.)
But-- I must say, even short, they look a lot better unbitten. A LOT better.