[geodel]

I don't know if it is build environment or cultural thing. In US showing up at friends, or neighbors unannounced and spend hour or two would be very odd if not downright impolite. But in India it is something everyone would do or at least used to do a 15-20 yrs back when I was there.

One simple reason I think is overall US is very rich so people just can have anything they need on their own and sharing small things which lead to more interaction is simply not needed.

[ericmay]

It's a little of both but the built environment is the primary issue.

We have neighbors - sometimes we need someone to grab a package, or we make too much food and we share, &c. or we run into each other walking to a restaurant or through the park. But this isn't the norm. We live in a neighborhood built before the introduction of cars, so homes are built a little bit closer together, but not too close, and we have mixed-use developments and a good level of density to support restaurants and other amenities.

You can't have spontaneous interactions like that easily in the United States because we build too much sprawl, visiting people or showing up to a bar requires a drive, and in the end you wind up just staying at home participating in surrogate activities like social media.

It really comes down solely to cars and car-only infrastructure that degrades our social interactions to an extreme extent.

-edit-

I do want to mention, at least when I was a kid/teenager I recall we used to show up to people's houses uninvited/unannounced too. But we did not talk to our neighbors. That was a weird thing. There are some cultural things here. But also even if we wanted to visit someone, well, gotta hop in the car. Maybe stop and get gas, and the next thing you know, eh it's too much effort. Might as way stay home. That's kind of how that works. The car-only model that is implemented in most of America, particularly the cities not so much rural areas, is a leading cause of cultural and social malaise I believe in the West.

[massysett]

I don’t think the built environment is that determinative. I live in a car-dependent suburb. Walk Score 2.

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.

[palmotea]

> One simple reason I think is overall US is very rich so people just can have anything they need on their own and sharing small things which lead to more interaction is simply not needed.

That's a very interesting observation!

I have a theory that reducing "friction" is actually a net negative after a certain point, and US society is way past that point. But everybody keeps doing it, because they're myopically focused on little problems and don't see the big picture or down have a full understanding of all the alternatives.

People need external constraints, because those are the things that keep certain internal drives under control.

It's like when food was scarce it made sense to gorge yourself on calorie rich things and avoid physical effort unless absolutely necessary. Now that food is abundant and it's actually possible to nearly completely eliminate physical activity, we have an obesity epidemic, because those drives no longer hit external limits and are now out of control.