American university tuition is relatively expensive, and Americans advocate independence. It is impossible for college students to pay for tuition by working on their own. If there is no advance payment from parents or a scholarship, the only way is to apply for a student loan. , slowly pay it back after graduation. This is a state-supported project, and the loan interest rate is very low, so many people don't care about the interest and will pay it back slowly after graduation. However, Obama should not be able to repay the loan at the age of 43. He graduated from a prestigious school and has a high-paying job as a lawyer, so it will be easy to repay the loan.