Teachers teach students cultural knowledge, so teachers have no obligation to push cultural knowledge to their parents. Parents tutoring students at home is based on the fact that teachers should teach their children to be familiar with knowledge, rather than the teacher blindly pushing the obligation to learn knowledge to parents! If the teacher still insists on this, then the teacher will travel in the future. If the road is blocked by natural disasters, please ask the teacher to dig it out and escape. If the teacher is ill and needs surgery in the future, please bring your own knife. In the future, if the teacher is hungry, please farm and grow food by yourself. Since you can blame, anyone can blame.