Children can grow up smarter by Tiger mother but sometimes, too strict education damage children physical and mentally. In meritocracy, like Japan,Korea and China, parents tend to meddle in their children because people can get good jobs by graduating good university. Parents prohibit some amusement like playing computer games, going outside and using smartphones. If their children get bad scores, parents get really angry at their children. what’s worse, children can not eat lunch or dinner after doing homework. Children feel big stress and they sometimes get mental illness. Overzealous education is not good for children.