Those (facts) being that children and young students have almost no risk from the virus,
That is an outrageous thing to say! They are as likely to be infected as anyone. Perhap you mean they are less likely to suffer severe illness or die, but that does not mean there is no risk. There is far greater risk to them than from seasonal influenza. They are much more likely to end up with life-long disabilities.
FURTHERMORE, as I have said repeatedly, there is a larger risk that the children will infect adults at home, or teachers in the school.