My neighbor knows the whole street. She knows the garbage men. It’s because she wants to. When I run into her outside, she chats. She walks her dog and chats with dog owners and anyone else she sees.
Easy relationships are available at the grocery store, post office, etc. I’ve been seeing some of the same people working at Costco for years. I don’t know them. It’s not the built environment. I’d need to take effort to build a relationship with them. My neighbor would. I’m simply not so inclined.