Yeah, I think you got a wrong impression from this, OP. I don't see any posts saying that the Na's cultural norms are something you should strive for or want for yourself now. Obviously, it wouldn't work very well today because our society is set up differently than theirs.
It just seemed like people were giving you some interesting food for thought.
I want to point out, though, that Na uncles aren't really uncles in the same way people are uncles today. They share a household with their sisters and kids.