You can still have quality time with your children AND send them to day care.

It’s not like boarding school where you’d only see them during the holidays ;)

Are you open to the idea that spending every possible moment with your young child may not be the best thing for the kid?

I think this is a leading question and you should probably clarify why you're asking it. More specifically, what situation leads you to believe that it's not totally fine to spend a lot of time with your pre-adolescent children? I think there are a wide variety of living situations that all result in pretty well-adjusted children.

I think it's healthy for parents to have other pursuits. Not everyone is 100% fulfilled hanging out with young children all day, and that's perfectly fine.

Even with daycare, parents are spending a substantial portion of their time with their children.