I despise sidewalks. The hand made paths that they are. The pulled up earth and soil and crushed together new materials to nothing more than a broken conveyor belt for people to follow on. A rule that goes largely unquestioned when walking. 
Why step here? Why not step though the earth and grass? Is it gross? Is it dirty? Is it unclean? Is it unnatural? Whats more natural than earth and more unnatural than synthesized paths that funnel you along on a single path. I’d rather enjoy the grass and soil in my toes than cement under rubber shoes. I want more earth.