I'm seeing it discussed left right and centre, my post was prompted by television this morning.
For many reasons (none selfish) I think it would be disastrous, but the one that stands out to me the most is people's ability to work.
I'm sure there will be plenty of nurses/HCP's/important key workers who rely on nursery to be able to do their jobs.
Not everybody has family that can step in.
Older primary aged children and secondary age children can fend for themselves to a degree if push came to shove, but you can't do the same with toddlers and babies.