But he can do other things that will help him pay of his debt until he passes the bar and then work as a lawyer.
Just because you go for school for something doesn't mean your guaranteed a job doing just that. You go to school to learn something. Usually you use that knowledge to advance your career (or start one). However, it's unfair to demand that just because you went to school to become a lawyer (or doctor, or whatever) that people must hire you into that position.