Debt

Students who acquire large debts putting themselves through school are unlikely to think about changing society.  When you trap people in a system of debt . they can’t afford the time to think.” Tuition fee increases are a "disciplinary technique," and, by the time students graduate, they are not only loaded with debt, but have also internalized the "disciplinarian culture." This makes them efficient components of the consumer economy.
--Noam Chomsky