I feel like a lot of this is due entirely to the shift away from generational/communal living.
If you live with a bunch of other people, and those people actually contribute to the environment you all live in, the daily tasks get split up such that they are much easier to maintain, for everyone.
Say you’ve got a set of parents, 2 kids and their spouses, and whatever offspring under that. Sure you need a bit more space than your average single family starter home offers, but if only one house is needed, that frees up a lot of money elsewhere so I feel like that’s an OK trade.
But beyond the added space, you could have one person who cooks, one who cleans common areas, one who does dishes, one who does laundry, one who pays bills and manages appointments, and one who makes sure the kids are handled. Rotate those jobs as desired, or assign them to whomever likes doing them most of the time, and all the big major draining tasks are handled. EZ.
With individualized living, everything falls to one or two people, and yeah that’s an absolute ton. Especially if one of the two can’t or won’t pull their weight.