The thing is, if infections are rife among pupils, you then spread it to the adults in their families. The teachers might be okay, but the infection rate for the rest of us gets supercharged. I think the headteachers haven’t thought this through!
Exactly.
It may make the teachers less at risk, but what about all the parents of the children who are in school?
If children are such super asymptomatic spreaders then their parents of those children need the same level of protection that the teachers get.