You'd close schools to protect a minority of children with comorbidities from a virus which doesn't threaten the vast majority of children, knowing that school closures will definitely damage all children?
Is it really true about "vast majority"? In US, at least, it seems that the number of children with comorbidities such as obesity would actually be pretty high. You could argue that it's still a minority so long as it's under 50%, but I think that closing schools to protect, say, 20% of kids from a virus that can kill them is eminently reasonable.
You'd close schools to protect a minority of children with comorbidities from a virus which doesn't threaten the vast majority of children, knowing that school closures will definitely damage all children?
Umm.