I know there could be a lot of causes for this but one thing I've noticed, which is specific to my location, is that too much cultural homogeneity can lead to l

I know there could be a lot of causes for this but one thing I've noticed, which is specific to my location, is that too much cultural homogeneity can lead to loneliness. I remember clearly a time in my life when I was very lonely and having a lot of trouble meeting people. Eventually, I crafted a theory that most of the people in my environment secretly did not want to meet anyone. This was either because they already had busy lives or they just didn't need to know yet another person who was just like them. Shortly thereafter, I went back to university and encountered a lot of exchange students who were perhaps legitimately in need of friends and perhaps also coming from cultures which tended to be much less closed off to casual friendliness. This fixed the loneliness problem for me very quickly. Of course, it must also be acknowledged that the environment in university tends to facilitate social activity.