Earlier quoted context omitted.
In that case, shouldn't it be enough for everyone to return to work? I wonder why top companies in the S&P 500 are delaying return to work then. Clearly they must be operating under the same mysterious constraints that are keeping schools closed.
Top companies in the S&P 500 are delaying return to work because many tried it and were met with absolute mutiny. The vast majority of people got a taste of the remote life and don't want to return.
Certainly this couldn't be the case for teachers teaching remotely – they probably enjoy their 10 hour workdays where they are standing most of the time and wearing a mask.