Not only that, I live in a medium sized town(by europen stadars) of 400,000. When you go walking around you develope relationships with the people that lives around you, also you meet and start talking with random people you know but don't meet usually. As we are a social species this is really missed when is lacking. It's also surprisngly good for all kinds of networking effects, not only business but personal needs like doctors, home contractors, schools, you name it. Not only directly (you meet the doctor friend of your father), but also indirectly, getting recomendations.
Even in europe this has diminished an order of magnitude, my grandmother that used to live in Madrid before the spanish civil war, tell us (she is still alive at 98) that they used to know not only all their building, or their street, but their city neighborhood. Who was the son of who, jobs, personal problems, there was a great deal of comunal help.
I've only found this in contemporary Habana, everybody seems to know everybody when you walk at the city center.
That's why we use social apps, and elderly people sees that goship programs (in Spain is an epidemia). We need social contact, knowing what's happening around us, and the modern live style had made this need a business oportunity for Facebook et Al.
My wife is a doctor and a lot of people that comes to see her has the need to "confess" all their live. I guess a lot of psicological problems at developed countries are due to this lack of social human contact(not only family and close friends).