@sozobe,
Funny, I told my son the same thing when he said that he wanted to be a teacher - not that he was too smart, because some of the smartest people I've ever met are and have been teachers, but in terms of making a living and payment for his time, I thought that as a man, he should aim higher.
I know it sounds sexist, but for me, being a married woman, I felt that I had the luxury of doing what I wanted and not worrying about being the primary income, as my husband had always made at least twice and sometimes three times what I made in terms of salary.
But as far as job satisfaction, I couldn't have made a better choice. I've never felt that I've lost my life teaching - I've always felt that teaching IS my life and I've been extremely lucky to find that and to have been able to have enjoyed it as much as I have.
I literally look forward to going to work every day.