Nuclear familly with one breadwinner was and is exactly that. Staying at home with a kid is more isolating then work from home (you dont have meetings).

Retired people have had to deal with this. I assume it is less of a problem in multi-generational homes.

"Third places" have existed for 1000s of years. We have actively weakened them by replacing them with modern work in the last 30 years or so. Remote work exposes it even further. In office work, papers over the cracks. It doesn't solve the issue.