I live in what most would consider a very suburban area in the deep south and am forced to walk as a primary mode of transport. There is a bit of walkable infrastructure where I am, in between an middle class and more run down neighborhood, and while it doesn't happen as much as it did when I lived in some worse areas, there's almost a stigma to walking as a mode of transport. I've had people shout at me, etc. or even offer me a ride at night even when I'm on a leisure walk, presumably because they don't expect a young white guy to be out walking at night.