briantrumpet
Guru
I think the reality is that they will all get it whether the window is open or not. It is too infectious now and still, I imagine, spreads before symptoms appear.
The only bit I have sympathy for is shaming kids into going to school when they are too sick and should be at home.
I'd be interested to see a chart/graph of changing rates of infectivity of covid over time/mutations, though I'd take some convincing that generally improving ventilation is a Good Thing for reducing the likelihood of infection. I suspect it's still nowhere near measles for infectivity.