Some people will not make decisions on the basis of "what kind of world do I want to see", but rather the more immediate concern of "is my child going to be dis

Some people will not make decisions on the basis of "what kind of world do I want to see", but rather the more immediate concern of "is my child going to be disabled?". Vaccines weren't taken up by the masses because they wanted to eradicate polio for example, but rather because they wanted their children to be safe from it. Parents would gladly vaccinate themselves, even at a risk that they'd get a full infection, just to guarantee that their children would be safe. The anti-vaxxer issue nowadays is a tragedy of the commons scenario. Every individual who does not vaccinate their child, doesn't give up herd immunity immediately, and (if true) get's to avoid any complications associated with vaccine. They have others bear the costs of herd vaccination, and gain a benefit by defecting.