I enjoyed reading your excellent post on the Crooked Timber workplace coercion piece. Many of their complaints also hold for the university classroom, e.g., limits to free speech, students have no say in what work is required, etc.; and often there are costs to refusing to enroll in classes the student finds onerous, such as failing to obtain the desired degree. But I doubt Bertram and his friends would regard this situation as coercive.
Nor is it always easy to switch schools…