There are a lot of bad teachers because there is almost no training, and the filters are non-existent. It is a good paying job for somebody who can barely graduate college and doesn't have any other decent skills. And teaching is mostly about kid management, not actually teaching content. Keeping kids happy and the appearance of doing things that look like school. Obviously putting 2000-3000 teenagers in a building with 100 adults for 8 hours a day, 30 kids a room with 1 adult, with no intelligence of placement is a recipe for management not teaching. If we stuck 30 dudes from the free board in a room with a moderator, and made them sit and be quiet and listen, there would be no teaching...but a good teacher would do a lot of management until the bell rang. We learned during the pandemic that nobody cares about learning, nobody wants to pay for it but we do care about child care, and we want our kids babysat so we can go to work and make money to buy stuff. We still want our doctors and lawyers to know stuff but they have to learn that somewhere else.