Keeping connection with the older generations and learning from them is important. But I don't think, nuclear families are about denying that. It's more about having enough space and freedom to see each other when you want it, but keeping off each other's backs and not letting the differences between the generations ruin your relations. I've grown up in a typical 3-generational Russian family sharing a rather small a…
Don't romanticize what, living near your immediate family? Why? It's how literally every civilization has done things so far. This modern American ideal of forced to be on your own at 18 to find yourself has only been around for 70 years at most, and while we've achieved unthinkable progress in that time as a society, it's wrecked havoc over the family unit.
I love my family and after my father died my mother and I were forced to live with my grandparents. It wasn't terrible, but there are generational conflicts that you have to consider. That can get exhausting and my mother was relieved when we got our own apartment even if she loves her parents. We are still near each other and there is no drama in my family. But I don't think anyone of us would like to share a house again.
I don't like the popular cry for abolition of the nuclear family in favor of some comittment-less commune. But the other model to live within a family clan isn't attractive either. And you can still handle it as you like, because nobody is forcing you in either direction.