On the flip side of that coin, a quick Google search turns up the fact that as of January there were 530 US teachers who died as a result of covid (that we know of, so the number is likely higher). And the fact is, given that teachers are usually able to retire before the age of 60, very few of them are in the vulnerable age group. So there’s a delicate balance between death and how much we’re willing to let students “fall behind” their peers in other states and countries that are mostly doing the same thing.