One of my friends was a teacher. He enjoyed it, but the money was so bad it was frequently a point of stress for his family. He asked about raises, they said no

One of my friends was a teacher. He enjoyed it, but the money was so bad it was frequently a point of stress for his family. He asked about raises, they said no - but that they could pay more to teachers that have a masters. So he went back to school and got one (a difficult choice since that also costs money, but it seemed worth it). After he received it, there was a wage freeze. Long story short, he now works in corporate training. We treat teachers badly.