Let me pose this question. If you get your kids vaccinated what is the problem if someone chooses not to vaccinate their children? Your kids should not be in danger after they are vaccinated correct?
There are people who are unable to be vaccinated due to medical conditions. This is not a problem if everyone gets vaccines. But it becomes a problem when more and more people ignore the scientific evidence and decide to not vaccinate their children.
Premature babies, even after they leave the hospital, cannot get the vaccines until they develop more. People undergoing certain types of chemo cannot get vaccines, so children with cancer and taking chemo can get measles or diphtheria.