There is a small section of ranchers in Hemingway that have vinyl fences around the entire lot... a small scale experiment that hasn't been repeated and you would have to catch one on a resale.
There is a provision in the covenants for a small picket fence, attached to the house. I'm sure these are pretty limited, but, I have seen a few. Here's a picture I snapped in Sunset Pointe neighborhood.
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Maryland (DC Suburbs) - first 51 years

The Villages - next 51 years