Since primary school is mandatory in my country, they have to accept all kids, with or without vaccination. Kindergarten aren't mandatory, so it is up to them if they accept unvaccinated kids or not.
There are exceptions for kids that cannot be vaccinated because of medical reasons which is argument for those parents who does not want to vaccine their kids and still want get them to kindergarten regardless their health condition.
Primary and secondary school is mandatory here too. They won't let you go without shots, or an exception (medical, or in some states a religious/belief one). The alternative is that you're home schooled (even private schools are required to mandate the shots).
