I'd be interested to see if you could provide a reference for that statement. My experience with undergraduates I've met at MIT and Harvard, for example has be

I'd be interested to see if you could provide a reference for that statement. My experience with undergraduates I've met at MIT and Harvard, for example has been that they are predominantly middle class - however with still predominantly more upper class students than working class. Of course, that's just my subjective impression.