I'm not following. Being in debt restricts what jobs are available? A student takes a loan to get an education. When taking the loan they agreed to the terms

I'm not following. Being in debt restricts what jobs are available? A student takes a loan to get an education. When taking the loan they agreed to the terms which includes paying it back. There is no stipulation in the loan agreement on what jobs they take to pay back the loan. Being in debt does not change what jobs are available.