In my primary school in Australia, Adelaide. We had a policy called No hat no play. Basically everyone had to wear one of the three school hats when the kids go out to play for recess or lunch because in Australia, we have a high cancer rate due to a bad ozone layer.
I have a peanut allergy, I go to school. I don't care if you bring peanut butter to school, up just wash your hands when you are done eating. And I vaccinate.
If you don't vaccinate your kids they can't attend school and you can't receive benefits.