Even at the highest ranks, you are underpaid and overworked. I received a raise and was put in salary for a summer, but since I was working over time every single day, I was actually making less an hour. If you don’t have experience with children, it can take a lot of time to build up tactics. Your success relies on the success of coworkers, and the standards for employment are weak. Many coworkers will think they know better than decades of research and years of hands-on experience. And thus, they will not set you up for success. Unless you get a peek behind the curtain via promotion, you have no idea what’s going on big-picture.