I dress more preppy than music that I listen to is

I don´t see any reason why to dress in a metal way when I listen to the metal...I used to, but I found it useless + I think you shoud have a good taste not just in music, but in literature, movies or dressing too and metal clothes are quality and look stereotype. + wearing black only is stereotypical too.
Hmm and about those friends, I know that lot of metalheads have friend in metal crowds only, that´s bad, people might not judge people by music taste. When I used to dressed in a metal way, I was isolated from "normal looking" people, which sucked, cause I found lot of good persons among them.