I don't know. When I was living there, interpersonal relationship among Americans always seemed very shallow and greedy. Generally the first contact was very we

I don't know. When I was living there, interpersonal relationship among Americans always seemed very shallow and greedy. Generally the first contact was very welcoming, then, nothing beyond that. It felt as if any socialization was first and foremost a kind of investment. If after a probe, the ROI did not looked promising, the line would go dead almost instantly. I remember very well asking myself how such a society could not eventually lead to very lonely people. Fortunately, I was not looking for friends, because I did not bring back so many from there, and most of them are actually first generation immigrants.