Plenty bouncing around in this thread, much of it arguable. I'll just touch on a few points, as I prepare to enter the profession next year.
? I do have a bit of a problem with the base salary system and no way to make more (or less) money based on performance of most public education contracts. I would be fine making my own way with my past experience outside of the profession, and my performance going through the teaching major.
? There are many reasons why people select the teaching major. Sure, some have trouble with one curriculum area compared to others. Some can't cut it in math, or in science, or in English, or in physical education. If you are going to teach one of those subjects, you need to get a teaching degree, and not a degree in that subject area. I would suggest most people pick the teaching degree because they want to teach and work with young people more than for having summers off. Most teachers work longer hours than other professions for the time they are teaching, and many have to work summer jobs these days. Most have to spend time in the summer preparing for the next school year - lesson planning takes time, a lot of time. You can't just show up when school starts and start teaching. Most people who dismiss teaching as low hours and summers off really don't understand what it takes to teach.
? I'm not familiar with unions having ANY say in what teachers teach in the classroom. Any examples of that? I know there are plenty of conservative legislators that have influenced what is taught in the classroom with the bullshit No Child Left Behind legislation that has produced no improvement in performance and has prevented teacher creativity and cut important other curriculums and extra-curricular activities.
? A true teaching degree from a college that has a good education curriculum takes plenty of intelligence and a well-rounded understanding of what it takes and means to be a teacher. Many people don't care to know and understand what goes into being a good teacher - there is a lot to learn about teaching strategies, classroom management, psychological issues of individuals, and legal issues. Not only that, you have to learn how to implement all of these things in a short time, and immediately come out and be responsible for the education of hundreds of students every day, deal with the parents (good, bad, present or absent), and do it all by yourself from 6 AM to 9 PM many nights. Let alone if you are a coach or involved in other school activities. It takes a special person to accomplish what a teacher does on a daily basis. Many of the people that are being called more intelligent or successful because they don't teach could not handle teaching - nor would they want to. They'd rather be in a quiet office or room, make more money, and not have to deal with people on a daily basis. I could definitely offer the saying, "Many of those who DO, could not teach."
? People are often hired in the private sector not because of what they know or do, they are often hired because of who they know (or do). It's usually not like that in the public school system. You are more likely to be hired based on your ability, performance and interviewing skills than who you know.
? As far as mandating what is taught in history class, history books have misrepresented actual history since they have been printed. Including true history from groups that have been repressed, disregarded and hidden because of a policial agenda can only be considered a positive thing - if you are actually interested in teaching students history. Which, sadly, is not the case for many people - here, and elsewhere.