"Goths grow up to be lawyers, doctors and other professionals."
Possibly because the goth look and subculture tends to attract a more sophisticated and intelligent type of person than, say, punks or metalheads (I do admit this is a generalisation). I'd agree that its more a fashion statement than any rebellious urges, although the philosophies and attitudes traditionally associated with goths can be considered to be highly rebellious (though not necisarily violent or revolutionary) in comparision to more traditional views. But this will depend from person to person. It always does.
That's my take on things.
Kirk Out.