Things will become interesting from next week when school starts again.
Agreed, and not in the fun interesting way. A lot can happen between now and then though. Lets see how things pan out.
the reluctance of companies to allow staff doing work from home
My own experience has stunned me. I asked about it a month ago and was told that option is not available for contractors, only for fully fledged company employees and for just several days per month. Fast forward to now, and everyone who can do so including me is working from home as much as possible. I've never seen such a fast implementation of new policy during my 25 years working in Japan.