My sister spent years at uni getting her teaching qualifications, went and taught at an international school in Italy, and envied the TAs who had no qualifications, did a fraction of the work she did, and got paid almost as much as her. She only lasted 6 months at this school. It was horrible. She wanted to be a good teacher, wanted the kids to enjoy their lessons, but the headteacher forced her to just write stuff on the board and get the kids to copy.
The other teachers told her...you get used to it, just accept the horrible reality of teaching and enjoy your weekend trips to Italian cities.
Now she's looking into teaching in countries with better education systems like Norway.