I’ve been trying to find this ridiculous sci-fi story I read in elementary school. I thought it was Ray Bradbury but then I recalled it was, I believe, from a collection edited by and/or with a foreword by Bradbury.

The scenario was that people in the future had become so dependent on mechanized transportation that their legs atrophied. Walking around normally was seen as very strange as everyone used these hovering personal transport devices. I think the story basically just described the protagonist walking around town and taking strolls at night and how odd everyone else thought it was.