Multigenerational households are definitely becoming the norm again–as they were many years ago–especially in places like CA. Although we love our kids and have plenty of room, we realized a housing crunch might be on the horizon quite a few years ago, so we tried to plan ahead, so they would have places of their own when the time came.
We all like being together, but, for many reasons, I still think it’s great for everyone when kids have their own space for themselves and their own families whenever possible.
To each his or her own, but, imo, it’s all part of growing up, and becoming your own person. In fact, we’ve noticed that since our kids now live elsewhere, the time we do spend together is even more enjoyable.