Are People in London really "Insular" and not used to getting to know each other?

Question

User daveheez, who seems like a pretty cool person, asked about a neighbor of his. When suggested that he go over and get to know her he said that this was counter to London culture. Really? I have never been to England though I hope to see it one day. I am just curious.

Answer 1

Its not just London, thats inner-city culture folks. However, London is notorious for being a killer city, completely alien from its citizens and vice-versa.
I live in Birmingham, an industrial city in the Midlans, and Britains Second City, and our culture is very different