Somebody has to take care of kids during working hours. It can be the parents only if we expect the parents (at least one parent in every family) not to work,

Somebody has to take care of kids during working hours. It can be the parents only if we expect the parents (at least one parent in every family) not to work, which would require an immense reversal in our social structure. Something like 25% of families are single-parent families, do we expect all these people to quit their jobs in order to raise kids? To put it bluntly, if the alternative is to put women back in the role of 'Kinder Kuche Kirche' (https://en.wikipedia.org/wiki/Kinder,_K%C3%BCche,_Kirche https://en.wikipedia.org/wiki/Kinder,_K%C3%BCche,_Kirche) then it justifies declaring that "warehousing kids" should be one of the key functions of educational institutions; simply because it's an important function that needs to be done by someone other than the working parent(s) and they can fulfil that function reasonably well. Sure, education should be a priority, but IMHO it's better for everyone involved if we explicitly acknowledge all the various valuable functions what our society needs (and gets!) from schools instead of falsely pretending that it's only the education. Or do you have in mind some other option that removes this role from the educational institutions while still allowing the parent(s) to go on full time employment?