Not only is there little to no support for teachers, but it sometimes feels like because there are a few bad teachers floating around in the system, that everyone needs to be punished and inconvenienced. I like job security as much as the next person, but I was a huge advocate for getting rid of tenure as a result.
I'm still incredibly passionate about education, but suspect that being a teacher is the best way to create change. Even in my short tenure, the amount of bureaucracy had increased exponentially. When asked for advice on becoming a teacher by a college student recently, I recommended against it—which broke my own heart, because I believe that it's an incredibly important profession—just not one I would give my twenties to again knowing what I know now.