I could easily repeat the same thing everybody else in this thread has said and portray a happy-go-lucky unrealistic, idealistic view of the world and tell you all that it doesn't matter what people wear because we're all the same inside and that we should value everybody as individuals and as humans.
And that's great. But I think I'll have more fun playing devils advocate.
By virtue of being here and participating in this forum, you care about the clothes you wear and you care about you look. Anybody on this forum who tells you otherwise is a flat out liar.
Anyway, people choose the clothes they wear, and to some degree or other, whether you want to admit it or not, the clothes a person wears are a reflection of the person wearing them. People who are a. not children and b. not disabled or incompetent in some way dress themselves. This means that they choose the clothes they wear - they choose things that they think look good and either reflect who they are or who they'd like to be. A person's choice of clothing is a representation of themself to the world.
Let's say (hypothetically) that I meet some girl who wears homie-g, ghetto-funk, for real dawg, my nigga type "urban" clothes. And for the sake of argument, let's just say I find her physically attractive. I don't think anybody here is arguing that I should overlook personality, similarity, lifestyle differences etc. And I don't think anybody here who is not retarded would even think to argue that this homie-g dawg gangsta is very much like me in any number of ways. It hardly needs mentioning that this gangsta princess has little in common with me. I was able to tell that by the clothes she was wearing, the way she did her hair and the way she did her makeup. You were able to too.
And let's just make up one more example. Let's say there is some normal kind of girl I meet - she doesn't really stick out in any kind of way like the last one, and let's just say, once again, for arguments sake, that she is reasonably physically attractive. Thing is, she seems kind of unkempt - her hair isn't done, her clothes are kind of baggy and don't really fit her too well and they're kind of wrinkly. Maybe she's having a bad day. Maybe she dresses like a "bohemian" - I don't know, you choose. But then I see her again on another day and on a third day - same thing. Maybe it shouldn't matter to me that she doesn't really care about designer fashion, much less what she looks like, but there are probably many more differences that stand between her and me. Differences in background, differences in values, differences in aspirations and goals, differences in ideas of what kind of lives we want to live, ideas of family and how to raise children, etc etc. Maybe if she was dressing like a bohemian, she has a totally different worldview and political ideologies than me. Maybe she wants to go live in the woods and live off the land. Maybe the differences are bigger or smaller - it is hard to tell in this situation, but it is possible that her clothes may have been indicative of greater and more significant differences between us.
Anyway, I've written more than enough. Time to stop for now.