Some students work their way through school. They go to school when they can afford the tuition. When they can't, they take the semester off and bump up the hours at their off-campus jobs. It may take them five or six years to graduate but when they do, they'll be completely in the black. Other students work summer jobs or part-time jobs during the school year.
Some students take on work-study jobs as part of their financial aid packages.
Don't overlook co-op programs. Several hundred colleges and universities offer co-op programs that combine classes with work opportunities in a student's area of study. With some programs, a student will take classes for a semester and then work for a semester. In other programs, a student's day is divided between work and school. It may take a co-op student an extra year to earn a bachelor's degree, but they'll have some great work experience to go along with their diploma.