Interesting take. I haven't thought about it from the teacher's point of view. In the Netherlands there's a 4-day workweek and parents can take turns on the day each of them stays at home with their children. And that was even before the pandemic!

Also, there's another debate with a 4-day workweek: what comes first, productivity or less time at work? If you're interested, here's my article on this issue:

https://medium.com/p/bd575a96cdde

Anyways, thanks for sharing about this topic. We should really consider this workweek as the new normal.