Just seen a commercial for this in my area.  My daughter is talking to the school today.  Explaining that is it not the school's place. If her children need a healthcare visit virtual or in person...SHE will handle it. 
Are the schools over-stepping? Would you allow your child to have this type of visit from school?
Interestingly, Pfizer just claimed their shots safe for 5-11 yr-olds.