I mean, I worked retail too and I get what you're saying. However, just because you don't have a deep, meaningful relationship with someone doesn't mean they aren't a part of your community. Hell, I've probably chatted with my mailman 3 times in the past 3 years, but we recognize each other and say hi and ask how each other are doing.

Just because I wouldn't call him if I needed a kidney doesn't mean he's not a part of my (the) community.