The quality of the environment is of course important. The environment will have some influence on children more or less, but I don't think the environment can completely change a person. Any good school has poor students, and any poor school has good students. What matters is the child's psychology. Only when he is interested in learning can he succeed in learning. I have always believed that what suits me is the best. There is no need to ask too much about the quality of the school.
PS: experts are not worthy.