Schools shape society by transmitting cultural values and norms to children. They also sort and select students to fill different roles in society, providing credentials to determine career opportunities. As social institutions, schools promote political integration and national identity. They also serve as agents of social change by conducting research and developing new knowledge and skills. Overall, schools prepare students for their future social and occupational roles through anticipatory socialization and job training. However, critics argue that schools primarily serve to maintain the status quo and reproduce existing social inequalities.