Undergraduate / "Cliques at school" - Topics for My Essay to UT! [4]

So, I have to write an essay for UT Austin, and Texas A&M, and the question is:

Choose an issue of importance to you-the issue could be personal, school related, local, political, or international in scope-and write an essay in which you explain the significance of that issue to yourself, your family, your community, or your generation.

I was wondering if cliques in school would be an okay subject matter to write about. I want to write about something unique, and I think this topic is pretty unique. I'm hoping that someone can give me some feedback on if this is okay, and if my basic outline is okay to write on too:

Cliques at school

a) Short term effects
i) People don't interact with people unlike them
ii) When people don't fit in with a particular group, they are left out
iii) Cliques are a way of people shutting out other people from being their friends
b) Long Term effects
i) People will not be able to work with certain types of people in the work world
ii) Since they only have a particular type of friends, if they can't find that type of people they can be very lonely
iii) Might reject certain people from their lives