[33girl]

When you're pledging, some fraternities do require pledges to wear certain clothing because you're not allowed to wear your pledge pin with things that are considered too casual. When you're pledging, you have to wear your pledge pin the majority of the time. Proper attire with the badge is something initiated members have to adhere to as well.

If you're not talking about that - if you just mean that people get on your case - that's only a "rule" at certain schools. If you don't like the fact that they're outright telling you what to wear and you don't understand their distaste for the other stuff (although I totally agree on American Apparel), there are probably going to be other things about the brothers/fraternity that bug you as well.