The US formalism and legal system around public education specifically calls out its purpose for creating nationally aligned citizenship.
For example a few years ago Colorado proposed to educate High Schoolers using a textbook that highlights morally questionable aspects of American history from the perspective of "The Left" (Howard Zinn's "A People's History of the United States"), it was rejected by the courts on the grounds it would not accomplish the required purpose of creating nationally aligned citizens, crucially NOT because it wasn't a good textbook for teaching history.
For example a few years ago Colorado proposed to educate High Schoolers using a textbook that highlights morally questionable aspects of American history from the perspective of "The Left" (Howard Zinn's "A People's History of the United States"), it was rejected by the courts on the grounds it would not accomplish the required purpose of creating nationally aligned citizens, crucially NOT because it wasn't a good textbook for teaching history.