Punk music is great and all, but that depends on yr opinion and stuff... So far as clothes, nobody could ever care less, and if they're the type who DO care so much what others go about wearing, and stereotype, they're not really worth considering, ever. Don't worry about them.
so long as
there is someone standing up and fighting for what
It's a lifestyle. You don't take bullshit.
That's all there really is to it. No matter what you might stand for, if yr standing up strong, not budging and basically being annoyingly difficult to those who oppose you, you can be (at least a bit) punk. Believe it or not, there aren't a CRAPLOAD of peope like that, but they're there.
Actually, mohawks are pretty awesome. I suppose they're some landmark, and y'know, when you think bout it, not many people like 'em. Survive the stares, rude accusitions bout worshipping the devil, even retaliate.... every con that comes with that awesome 'do, keep it (not just for the couple months that it's a trend) and yr punk. Fuck those mohawk-hating moosefucks!