You help one neighbour with their car and it snowballs.

I don't know if it is a out west thing. People just aren't friendly. Lots of California transplants in my neighborhood.
Not friendly at all.
You might be onto something. 20-30, even 40 years ago, everyone knew everyone and I had been inside just about everyone's house on the street. Now, I'd say I know maybe 4-5 households out of 40 on my street and one of them is my ex. So we'll say 3-4...

Any time I visit the Midwest, I'm reminded of how things "used to be." ****, even when I went to NYC, the people were surprisingly friendly.