I think Teachers used to be underpaid and they still like you to believe it, but no more. The acid test to know if a profession is overpaid is the existence and strengh of a union. Unions exist to achieve above market wages & benefits.
I know its all been said: Teachers work 9 months, get 3 weeks of at Xmas, 2 weeks off at Easter, plus about 15 more holidays. Yet they average +$60k, plus great benefits, including fully paid health for the whole family. Not bad for part-time? What other profession can claim it so good? Oh, and you can’t get fired ! Go tell your boss this is what you want and see what happens.
I am generalizing. The best should make more, incentive pay for results, the worst should be concerned about loosing their job.