THere'sno denying the importance of child care, but it seems just about guaranteed that if there is a case in one family it will spread to the other (up to) 11 families in the child's "stable group"
That's always going to be the risk until we have a working vaccine though and it's really hard to reopen without childcare in place. Without it a lot of people will have to choose between losing their jobs when their employer reopens or getting adhoc in home childcare.
If we're adapting anyway, one change could be gradually leaving kids home alone for longer times.
"Kids always need supervision" is a US thing. Leaving kids alone for some time works just fine in other countries. Of course there would have to be law/regulation/policy changes (to keep CPS away) but so what.