Joining a fraternity

[titletown]

I want to pledge a fraternity. And I've rushed already as a freshman. Only a little first semester but I found a fraternity I'd like to pledge the second semester I rushed. But I have a problem with the whole Greek process. I don't like the traditional Greek wear. The short golf shorts, the short sleeve polos. I liked the people in the fraternity I got a bid for, and they seem to really want me to pledge, but in addition to Ralph Lauren, Jack Wills, Lacoste, and Vineyard Vines I like to wear Pacsun and American Apparel also. I just don't understand the big deal of having a variety of clothing I can wear. I don't see why it's a rule I have to wear the short shorts and a polo all the time. I guess I'm asking if it's such a big deal about the clothing. I thought a fraternity was about meeting more people and expanding your network and making new friends. Not "What to Wear 101". I'm not looking to make anyone mad. Just looking for an input. Thanks a lot I appreciate it.