we do not, in the suburbs, have a system of public schools. We have private, government-run schools. A public good is something available to all—non-excludable and non-rival in consumption, like clean air or a radio broadcast. But access to local school is eminently excludable: those who do not buy or rent a home in the right area cannot access it. And it is at least somewhat rivalrous in consumption, since crowding and peer effects play such a large role, at least in the perception of educational quality.
He says that universal school vouchers are a political non-starter.
The two most stable organizing principles of the political economy of the American family in the twenty-first century are that educational access is purchased with one’s home, and that established suburbs do not change their character.