I haven't read the other responses to the post yet, but here are my reasons:<br><br>
It confers an ersatz sense of belonging to a higher, status-affiliated group, one associated with winning (as in the case of teams), aggression (as in the case of teams), and most of all, rampant materialism (as in the case of designer logos).<br><br>
This ersatz sense of "belonging" is supposed to confer a sense of the wearer's individuality and individual preferences. Instead, it subsumes them under a collective, false "individuality" as defined by large sports and clothing corporations. It's no more individual than the all-blue citizenwear under the Mao régime in China, except that it's far more expensive and far less utilitarian.