You need a long time to establish trust. In European villages, if you moved to a place, and weren't born there you were considered an outsider, newcomer, and what's more, likely even the first generation who was born there was still considered a newcomer. Just because you went there from 100 kilometers, even though you speak the same language and have almost the exact same culture.

High trust communities need a lot of time to develop and a lot of annoying gossip and reputation stuff that can feel nosy. My grandparents were always keenly aware of "but what are they going to say?!", what will they think of the mother if this or that (if the child uses swear words, if people peek through the window and see a messy room, if there is weed in the garden, if a guest is not stuffed full with food, if the curtains are still closed at 7 am, indicating that they are lazy and sleeping in etc). They were always worried about optics and reputation. They were in turn always evaluating how everyone else lived and behaved, who helped and who didn't, who lives neatly and orderly, or who doesn't cook for his (edit: her) husband properly, or which man is a drunkard or gambler, who shows up to church and who doesn't etc. This is suffocating but necessary for the kind of reputation that prevents antisocial behavior.

Of course that's the other extreme, but the point is, you need 10+ years of living together and interacting, helping out in renovations, knowing the families, regularly sharing dinner etc to get it going. People move too often nowadays for this to be viable. And of course having to stay put has disadvantages for efficiency and adaptability, there's a reason why people are moving around.