I went to a medical examination of a junior high school near my clinic. I have heard that some students of a junior high school tend to be violent recently. I live in the country, and even now a system of a family has worked effectively.
Grandparents also have discipline their grandchildren. All students were polite. Discipline is a part of a family, not of a school. Some parents complain to a school about discipline for children, but it lays the saddle on the wrong horse.
Anyway teachers must work very hard, and parents have always made complaints about a school. By the way, several students have allergic dermatitis with bronchial asthma. We are all different from others, and predisposition is also different.
Rich, poor, strong, weak, healthy and sick・・・ our world seems like inequality. We only know that we have to live.