Don't get me wrong, I think many teachers are great and do a good job. My son's teacher is good at her job, enthusiastic and doesn't moan about it constantly. Actually, most of the teachers at his school seem good.
But, I do hear a LOT of moaning from teachers (especially on Mumsnet). It's a good salary, child friendly holidays, and a secure job.
Most other professions don't moan as much and we all work hard. Many of us don't have the salary we want. That's life.
You know the salary, you know the workload involved. If you don't want that, don't join up or leave if already in it. I don't care if all the moany teachers leave. We'll get a new set of more enthusiastic ones fresh from uni and excited to start in the profession.
I'm so sick of the glorification of teachers ("they are all amazing, I couldn't do their job, they are incredible.. blah blah blah", the moaning of teachers, and their need for constant praise and recognition.
Just leave or get on with it like the rest of us.