Bit nit: it wasn't "stupid" in 2020.

We went back in large part because our school year runs through the end of June (public schools end of July), so we were going to miss a lot more school than most of the US schools.

Again, I will never fault a teacher, or most administrators, for anything that they did during that time. It was a total nightmare, and we were just trying to do the best that we could for the kids with the requirements that we had. We threw the kitchen sink at it, and had a lot of data to share with our friends in the US about what worked (ventilation) and what didn't (I still have a half-full bottle of spray disinfectant in my office that I keep as a reminder that it can always be worse. We each had to have our own bottle of spray that we used after every class to clean the desks. Because *that* was helpful.)