This depends entirely on the density of a sidewalk. If you have a densely populated sidewalk (e.g. New York/Chicago sidewalks), then bikes should be walked whi

This depends entirely on the density of a sidewalk. If you have a densely populated sidewalk (e.g. New York/Chicago sidewalks), then bikes should be walked while on the sidewalk. If it is a sidewalk in a suburb, where there are 1-2 pedestrians per hour at busy times, then I'm going to continue riding my bike.