Irate Engineer,
This is very well-put. The dilemma of tenure is what people are yet to sit down and discuss. It's a mix of philosophy and management and it just requires too much thinking.
Personally, I was on track to be a pretty damn fine teacher a few years ago. I had 4 years of higher education outreach (teaching every Saturday in low-income schools), 3 summers of teaching summer school, mentoring, and even staffing week-long camps on our campus. My passion for education couldn't be beat.
I was working a temp job after completing my BA to build up my bank for the all the testing, applications, and the move required to transplant for a Masters/Credential program. My goal was to be a middle school teacher-- the one you throw your worst kids at to be turned around. That was my gift, after all-- taming the worst and instilling the self-respect and vision for the future so that their life course could be changed. I wanted to give the worst kids a good chance of attending a four-year college and we all know that that change needs to happen in grades 7 and 8.
I knew that I would never make money in that position. I knew I would be over-educated, over-qualified, and over-worked. I accepted that all because, at the very least, I knew that I would be secure in my employment.
And then the recession hit in 2007/2008. My friends who had gone straight for their credentials after college to jump into classrooms ASAP were getting laid off. Some were being exploited by being laid off in June and having to re-interview for their jobs in August. Others were being given only part-time schedules. My now-fiance and I had a very serious discussion. We could live with me bringing in less money. We could be happy with me working myself to the bone. I could be fulfilled in teaching others even if my skills were not all being used. But we could never have a child if we didn't both have a steady source of income. So I gave up the dream. I took a position for which I am still passionate-- just not as much as teaching. I'm making nearly $60k/year and have been here only for 3 years. If I were to be teaching I would, hopefully, be making $40k in my preferred position. And my job would be insecure.
It really is too much to ask of our young people. Just consider the cost of becoming a teaching in California. You have to graduate high school, take the SAT a couple times, apply to universities, pay for your costs to attend and graduate, pay for your GRE, CSET, CBEST, Masters program, credentialing program, relocations, and then pay out of pocket to set up your own class and make up for your school district's short fall. And then the supplemental clear credentialing and continuing education. If you choose to go to a UC school, you could be looking at $200,000 spent for the opportunity to be an amazing teacher in California... and make $45,000/year after 10 years.
I still desperately want to go back and teach... but it's still just not safe enough.