Who are these kids who can afford a fifth or even sixth year of college? Kids who pay in-state tuition, of course. According the Michigan Daily, in-state students are more likely to stay longer at the University of Michigan, a school where out-of-staters pay almost three times as much as locals:
76.2 percent of out-of-state students who entered the University in fall 2001 graduated from the University in four years. Only 67.3 percent of in-state students residents did the same—an 8.9 [percentage point] difference between the two groups.