Why do some regions like fences more than others?

Posted by jimwisethehuman@reddit | AskAnAmerican | View on Reddit | 88 comments

In California, where I'm from, the only time I'd ever see an unfenced back yard is when someone lives way out in very rural parts of the state, where neighbors are either nonexistent or very far away. But in Iowa, where I visit occasionally, whole neighborhoods go completely fenceless and all the houses seem to just sit on one large continuous lawn.

Are people more willing to share in Iowa? Are Californians more shy?

Anybody have any insight here?