But staying home surely wouldn't help if the virus came home with Little Billy? And I'm guessing nobody wore masks and limited contact with their own children in their own homes...
No teacher at our school (~600 children) caught covid, and only 3 classes were closed.
What I'm getting at is: it was fully possible to open up schools, provided you have a government and a population that is willing to accept restrictions in other areas. _It's a choice to close schools and demand that indoor restaurant dining stay open_.