Marley, I'm with Ajane. Gray doesn't have to look "old". On some people, it looks cool and funky. I like that girl on What Not to Wear with her gray stripe. I think it looks awesome. I'm sure yours does too.
I just had to share something my sister did on the phone tonight. I was venting about my ex and she said, "Well, enough time has passed that I feel I should officially say 'I told you so'". She did tell me when I first started dating him that he was bad news. I guess after so many years of keeping her tongue, she just had to get in the last word.