The school issue will only be resolved after the event.
I doubt many Australian schools are laid out like inner city Victorian buildings, and so even across the UK, the fall-out from going back will vary across sites, probably dramatically.
As a teacher, how happy would you be spending five days a week in a building housing dozens of kids? And especially when a number of teachers will be in the risk age groups.....
In the end, we spin the wheel, and hope for the best.