@Nujtag

I suppose your elevator experience is subjective and tentative at best. Personally, I've broken out with conversations with random strangers before with no problems. Though, I'm well aware that many subcultures and groups in other areas are accustomed to 'keep to themselves'. That being said, the individual you mentioned probably isn't used to talking to strangers whom they're not affiliated with in any remote way.

Proof that multiple cultures can exist within a single society.