I don't know for sure, since I haven't ever attended any medical school, but my impression is yes. There are definitely some schools that have a lot more older students than others. I would say that AECOM, Pitt, Case, Baylor, Miami, U Mich, Harvard, Chicago, USF, and Yale all have fairly large numbers of older students. Other schools are very young, like UF, UAB, Duke, Penn, Vanderbilt, and yes, Wash U. I understand that older students aren't going to be the majority at any school, and I'm not expecting that.
Your idea of student interest groups is a good one....they have an Old Farts Club at Pitt for students who are over age 30. I suppose I could start a club like that at Wash U, but the problem is that I'd likely be the only member.
P.S. Thanks, syranope.
🙂