@beentoldcomputersaysno
This. I think ventilation is a very important tool. Perhaps us4them could advocate for ventilation as they seem to have a massive amount of pull. I get the impression they are generally against anything that helps to genuinely live with covid (rather than ignore it), but surely there are no negatives to sorting ventilation out?
Ventilation is a good thing generally, but it can only delay Covid's spread through a school community. If ventilation means that Covid cases are spread over four months rather than, say, one before there is "herd immunity" amongst pupils, that may help in some ways, though it just means that the schools in under Covid's shadow for longer.
Also, ventilation (that involves more than just opening windows) clearly isn't free. There are 32,000 schools in the U.K. each one with an average of, say, 30 classrooms. Ventilation costs about £3,000 per classroom (i believe), so that's £3.2 billion. Even with a blank chequebook, logistically you wouldn't realistically have all schools done until the start of 2022/23 school year, if that!
So ventilation is a good thing, but are there better ways to spend £3bn+ when all it would do is slow Covid's spread somewhat, and even then couldn't be implemented fully for over a year.