On school buildings, this would obviously need planning which puts it outside the abilities of the current government but seems to me we’ve got empty university and college sites all over with students learning remotely, surely they could create some extra capacity?
It doesn’t seem an insurmountable issue, just lacking a government who could organise a piss up in a brewery.
If it were me: focus on schools with low income demographics as those kids will miss schools the most, I’d be paying a crap ton of retirees to remote tutor as well. We could be looking at a lost generation here in terms of educational equity, long term that’ll have far more impact on the economy than the pubs closing and we should be throwing money at the problem.