I only have one next-door neighbor, a widow with her two older daughters. They keep to themselves just like I do.
All my other neighbors are across the street in one direction or the other. I've lived there 20 years and our relationship is to nod hello as we pass by. Once in a while there might be some polite conversation but its short and light, and no one asks to borrow my tools.
It works perfectly.
I mind my own bidness and they do the same.
The only real trouble in the neighborhood I can remember was many years ago some fool invited a bunch of porsche guys to meet at his house before they went on a canyon run and they turned his street into a drag strip. Then afterward they followed him home and drank his beer.
It took a year or so for "those" looks to fade away