I don't think this is an issue about individual schools tbh. it's about the systematic under funding of state education, which has been going on for 10 years now and, as school staff warned everyone about all along, would hit breaking point soon.
This is the warm up. The govt has mandated certain things to be accommodated in schools eg bubbles, deep cleaning etc but provided no additional funds or even the vague hope of additional funds at any point. Schools that have an outbreak of covid can claim a few hundreds for cleaning, but no-one else.
There should be additional funding put into schools so that eg if there is going to be a deep clean on Fridays, there is at least childcare in place for children until the usual school day ends. The logistics would be complicated, but the first barrier is for schools to be able to fund it. Or the specialist sport instructors that someone mentioned up thread.
Even then, working parents still have wrap around and holiday care to consider, which will also be only universally available is resources are put it.
I don't think it's unreasonable to say that school isn't childcare. The onus to provide childcare can't just fall on under funded, short staffed and exhausted school staff, surely?