There is also the fact that people like to be with their own kind. That has been usiversal for as long as mankind has been around.

I just moved to Ireland. I am an atheist. One person keeps asking me what my religion is. I keep saying that I don't believe in that stuff. Then he asks me what my parents were. I tell them that they had no belief. He still wants to know what my religious background is. That's important to him...

Irish people are catholic. He is trying to find out if there is anthing catholic about me...