Llewellyn H. Rockwell Jr. said this quote

It isn't a coincidence that governments everywhere want to educate children. Government education, in turn, is supposed to be evidence of the state's goodness and its concern for our well-being. The real explanation is less flattering. If the government's propaganda can take root as children grow up, those kids will be no threat to the state apparatus. They'll fasten the chains to their own ankles.