I generally agree, except that the not being able to get around without a car bit is really True in my experience.

edit: It's easy to know your neighbors in suburbia if you're outgoing, and things vary from street to street. But there generally is way less interaction than if you were to have a neighborhood pub at the end of your street, or side-to-side porches everyone lounges on during summer nights.

It tends to be that you know the neighbors you get along with and ignore everyone else. In city environments, it's more like you interact with everyone because, well, no choice.