Because I'm petite I kind of NEED to wear heels with almost everything , not 4 inch heels but anything above 1.80 inch heels. I don't mind running around campus even in 3 inch heels boots. I don't think wearing stilettos is appropiate (plus I don't like the sound of pointy heels in a library or a classroom, is just awful).
But I do believe you should wear comfortable clothes on campus, It doesn't look right to me to see girls completely dressed-up on campus : is charmless
is like you have just seen everything that they can offer (in terms of styling) and they can only dress like that everywhere.