> > but I don't think we'd have been able to keep fully in-person school running last year anyway.

> But why do you think this? Are you aware that many parts of the world have returned to fully in-person school for several months or longer at this point? That here in deep blue parts of the US we are unique in our rabid devotion to denying children in-person school?

Because they're—US schools in my city—barely managing this year, due to staffing/substitute shortages? I'm not in a deep blue part of the US, incidentally.

> > The ones that went in-person suffered badly, in some cases worse than fully-online cohorts.

> [Citation Needed]

I have insight into districts that accidentally ran experiments for this, by running in-person and fully online programs concurrently. I can't share the numbers (they were in internal documents, with only some presented at school board meetings, which I certainly didn't save links to). Look at education & public policy journals in the coming years, should be some "fun" results (spoiler: everything was extremely bad, not just online learning)

> First of all I actually reject the premise that avoiding spread is necessarily a good thing.

.... ok.

> [quarantining teachers] could still teach remotely to a class of in-person kids (yes you might need some other adult to oversee things, but I'd wager even without such supervision you'd still have far better results than the unmitigated disaster that "distance" learning has been)

The amount of planning and support you need to make this work, on short-ish notice, under the constraints and in the environment schools were operating in, makes it unrealistic.

Overall, you're severely underestimating the disruption this has all had on in-person schooling, and the stress it's added for staff. You're overestimating how much extra work and (perceived, if you like) risk teachers were willing to take on, before they'd have simply quit.

> But yeah I really want to hammer home the point that, the only possible way in which we wouldn't have "been able to keep fully in-person school running last year" is purely itself an artifact of absurd COVID quarantine policies, and has nothing to do with an actual lack of staff nor an actual crippling health problem preventing people from being able to work.

I 100% guarantee you there'd have been a significant loss of staff at schools in our area if you announced a policy that all staff & students were to come in unless actually too ill to attend. You'd have had serious problems with sick-outs among the rest. Again: schools would have been crippled due to staffing reasons. You may disagree with what those people chose to do in response to that policy, but it's what they would have done. Source: I know a shitload of teachers in my area, and all of the ones who could afford to walk away from their job, spent most of last year right on the cusp of doing so, and they were absolutely serious about it. That kind of policy would have pushed every single one over the edge, instantly. Again, I'm not even in a "deep blue" area (rather more red than blue, in fact). I assume that effect would have been even worse in "blue" areas.

Your plan would not have worked, for staffing reasons. In-person school this year is barely working... for staffing reasons. That's just a fact, source: go talk to any public school teachers or administrators and ask them how the substitute supply situation is going, and how school attendance is going (80-85%ish daily attendance rates are common this year). Get ready for some stories. Attempting it last year would have gone even worse.