I understand that once a person has started a career, switching to a totally different career comes at a high price, so I suppose that instead I should ask “Why do you think that a person would choose to become a teacher, if he didn’t expect the satisfaction of teaching to make up for the relatively low pay?” The pay isn’t a secret and teaching generally requires a college education, which implies the opportunity to pick a different major and then start a different career.

I knew a woman from a poor background who was the first person in her family to go to college. She chose a major in English and a minor in Women’s Studies. I’m not saying that English majors can never get well-paying jobs, but I come from a “you can pick any career you want - doctor or lawyer” background so I was very surprised by her decision. Why would a person who didn’t have any money pick to study something that isn’t great for earning money? But she wasn’t stupid - she really liked English literature… Maybe she ended up working as a teacher.