Canada

I'm personally of the opinion that refusing to vaccinate your kids should not be a choice parents get to make. Just like how you can't choose to starve your children, no matter how deeply and truly you believe that we can draw all our necessary sustenance from the air.

In Canada we have a legal concept called the "Duty of persons to provide necessaries."

Here's the relevant legal code:

215 (1) Every one is under a legal duty (a) as a parent, foster parent, guardian or head of a family, to provide necessaries of life for a child under the age of sixteen years;

https://www.criminalnotebook.ca/index.php/Failing_to_Provide_the_Necessaries_of_Life_(Offence)

I firmly believe that vaccinations should be deemed one of the "necessaries of life" under this article of the criminal code. Like food, water, clothing, shelter, etc. You shouldn't have a choice in this matter. We shouldn't even be talking about whether or not that choice harms someone else's kid, because that's actually beside the point. At a basic level, we as a society have already agreed that children's right to be properly sheltered and cared for outweighs their parents rights to decide how they live. The idea that there should be an exception for vaccines - something that can mean the difference between life and death - is absolutely ridiculous.