At 22, I am beginning to get noticeable gray hair behind my temples. Following what's happened with my father and grandfather, I'll be gray by the time I'm in my late twenties. For the most part, I keep my hair cut pretty short (shaved on the sides and back, cut short on top and gelled) so when it's fresh cut, it's hard to tell, but after a couple weeks, I start getting comments on it when it's grown in. Should I let it go gray, or should I do something to take care of it? I've been bald before, and it doesn't look too good on me. Opinions please!