They know of no other routine. The rate of student employment probably varies among disciplines. In the most place-bound majors where students are in labs or studios for many hours, they may not be able to schedule outside employment. Perhaps today's students were overprogrammed as children, going to gymnastics, soccer, playgroup, etc., and thus, don't know how to deal with unstructured time where they set their own tasks. Students might not consider that four years at a research university is not the best choice for them.
Students come from a fast-food culture.
They are used to immediate gratification from MTV and the Web. They may not understand that some things take time and patience. They need to realize that college is a major commitment. Perhaps many of Ohio State's students are first generation college attendees. They may not have appropriate expectations.