Once upon a time...
I used to work in an office where we were all about the same age, demographic, and we'd have LIVELY lunchtime discussions, but once I left that bunch, I find myself much less inclined to engage others. I have friends all across the political spectrum, and while we have inklings about each others' beliefs, we don't tend to dig into them. I think there's a mutual unspoken agreement that it's best that way.