Its funny to see the diference between american universities and the rest of the world.
In many countries or cities eople dont live inthe campus and have two different lives so it can influence the way people dressed.
Having studied in europe and the US I have to say european university students are most of the times more stylish. In my case I''m from Spain and you will never see someone with flip flops, ugg's sweatpants or pyjamas in the uni, although it depends where your uni is(city) the degree you study, and the type of university you go to in the type of people you cna find.
In Spain in general or at least in my city Madrid(4-5 mill people) there is a lot of diversity, in my college(law and business) I have to say people dress very well and you can find a lot of stylish girls(i'm not one of them hehe) sometimes i wish the sartorialist came to my uni because he will have pics for a long time.
At the same time I have to say that in teh stree, and even more in the streetstyle blogs about Spain, you find everything and the most strange things, and even worse they usually portray the weirdest things they find in the street, which i hate because they dont represent the truth.