1.) It hurts like mad to have it pulled, tied, pinned, clipped, etc?
2.) Because it exposes your neck and makes you feel like your teeth stand out?
3.) It is cold?
4.) You don't think you look good that way?
5.) Because you like the looser feel of your hair when it moves in a less restricted way?
6.) Because you really don't like the style?
7.) Because it is a little too chic for your freer style?
8.) Because everyone else does and you like to go against the flow?
9.) Because you don't know how to do it so that it looks nice to you.
10.) Because you can't wear your favorite hat when your hair is up?