Government takes in other taxes. The case being made is that the city wouldn't exist without being living there. So, the local government has a particular inter

Government takes in other taxes. The case being made is that the city wouldn't exist without being living there. So, the local government has a particular interest to enable people to live there by subsidizing. Private insurance doesn't have the same upside I don't know if I agree with this but am answering your question fwiw