They kind of had this coming though. When you professionalize education, you dismiss social values. Therefore, people forget about duty of care. They forget that they're entitled to understand manners by the time they're graduated into adulthood, and teachers are allowed to get away with not teaching them.
Instead, teachers get to indoctrinate students with feminism, multiculturalism, environmentalism, and egalitarianism rather than caring about people for being people.