Quote From wowzers:
I don't know where you got that from. Despite what a lot of teachers say, out of all the teaching sectors compulsory education is very comparatively well paid with more openings and good progression routes. Have you looked what AST teachers, head of departments and headteachers earn! Good luck
By compulsory education, are you referring to K-12th grade? I'm assuming you live in England or some foreign nation because I've never heard the term AST teacher. I'm from the United States, and here non-college teachers are not paid well at all.