It need not always be about the money.
A debate is under way about the cost of higher education
But the most powerful arguments for free university are about values rather than economic efficiency. To politicians like Mr Sanders, a post-secondary education is a part of the basic package of services society owes its members. There are broad social benefits to a well-educated citizenry, because new ideas allow society as a whole to prosper and cultivating an informed population in an increasingly complex world probably takes more than 12 or so years of schooling. Amid constant technological change, a standing offer of free higher education may represent an important component of the social safety-net. Universality reinforces the idea that free education is not an expedient form of redistribution, but part of a system of collective insurance undergirding an egalitarian society. To progressive politicians, means-tested services send the message that government programmes are for those who cannot help themselves, whereas universal programmes are a means by which society co-operates to help everyone.