I don't like Waltons' family homes because of negatives associated with them in today's society, but I think it's preferable for families to remain in the same general area (depends on if you're urban, suburban, or sticks, but I think within an hour is best). One, I would have killed my MIL, or she me
No really. Two, her other children are ALL divorced, which would have left me in a home with 4 men, my husband, and a MIL who didn't like her children's spouses (the sister died *crosses self*).
But mostly, you get guys like that CT shooter whose parents completely ignored (or encouraged) the son's sick shooting fantasies, and it just freaks me out that families "protect" these deadbeat, post-college age "kids" who don't work, and supposedly have some kind of "mental problem" which these days include "sadness", "boredom", "fear", oh and "sɛҳuąƖ addiction" and "video game addiction"
That said, we built a private set of rooms with a bath, private entrance, etc, several years ago for my oldest son and guests; my husband wanted our son to have privacy (but when he put in kitchenette hookups, I wondered). He also built a large music room and then a private room for our daughter with a separate entrance that goes to the pool and, after turning a corner, the back door.
These areas
could be used to rent rooms if times get tight after the kids move out, but I wouldn't be opposed, under certain conditions, to having my children's future families live here. All males would need to be working; I'd probably have the same restrictions my dad had on me after college (the whole three months I was there before meeting my now-husband): have a plan (grad. school), some sort of income... I mean, adult or not, they can't just party and live under this roof. Oh no. And don't drag some hoe (pardon) or heathen up in here. I just don't have the patience of Job; oh no. There will be blood. (Sorry, it's who I am. I didn't push kids out for them to hook up with heathens. It would be an affront to God and put me in Hell, and if I go to Hell, I'm going for a good reason: taking out heathens.)
What daughter-in-law would want to live with me (I'm cool, ...until it comes to family. Then I'm a tad protective of their eternal souls.)