Or he could wear those sneakers with the wheels on the bottom hahaha. I was so mad when I didn't get one of those when I was little.
Anyways, yes the paths can get really crowded :| but biking also takes long, I mean, he has to put it up and lock it too. >.> I don't really know what to suggest, other than, stopping for a quick drink can often cost you a good seat if your next class is far.