>>In much of "flyover country", Americans routinely greet, chat with, and interact with strangers in public.
I’ve had the opposite experience. Strangers routinely strike up conversations with me when I’m in New York, Boston, Chicago. Last time I was waiting for a friend at a bar, and there was baseball on TV. Some old man sitting next to me turned to me and started telling me about the time he got something signed by Babe Ruth. As a foreigner I’m totally used to it of course, but I’m also cognizant of the fact that it is out of the ordinary in American standards.
I’ve had the opposite experience. Strangers routinely strike up conversations with me when I’m in New York, Boston, Chicago. Last time I was waiting for a friend at a bar, and there was baseball on TV. Some old man sitting next to me turned to me and started telling me about the time he got something signed by Babe Ruth. As a foreigner I’m totally used to it of course, but I’m also cognizant of the fact that it is out of the ordinary in American standards.