Not here (US). I suppose it varies by state, public/private school, etc. but currently there is no vaccine requirement for kids to attend school in person. They just have to fill out this little self-screening questionnaire once a week that has questions like do you have a fever? have you travelled to China, etc.?

Honestly, I'm not sure kids can even get vaccinated here yet. I don't mean that they are not part of eligible phase, I mean that I don't think the FDA has even approved it yet for school age children. It could be different for your country though.