Earlier quoted context omitted.
> there seems to be a growing consensus that K-8 schools aren't significant spreaders There's almost no evidence for that. It boils down to the virus is absolutely out of control here, and kids are way more likely to be asymptomatic, meaning that it's way harder to nail down that a child to adult transmission occurred outside of the household.
From Association between living with children and outcomes from covid-19: OpenSAFELY cohort study of 12 million adults in England https://www.bmj.com/content/372/bmj.n628 " Conclusions In contrast to wave 1, evidence existed of increased risk of reported SARS-CoV-2 infection and covid-19 outcomes among adults living with children during wave 2. However, this did not translate into a materially increased risk of covid…
Yes, the slight immunobump from being exposed to pretty much every year's influenza outweighs being next to one of the most socially isolated groups.
That doesn't mean that if they repoened you wouldn't see the opposite.