Footpaths are not roads/highways and roads/highways are not footpaths.  There are road networks and there are pedestrian networks and they are different.  I’ve  tag footpaths being separate from roads as dedicated to pedestrian use / access, and no access to vehicles, and horses and where cyclists must dismount.  For footpaths, access to all=No, AND pedestrian=dedicated and cyclists=dismount I feel is correct as footpaths are provided only for pedestrians to access and use. I have not encountered a single source of OSM orthodoxy agreed by everyone specifying only one way to do everything to which everyone must comply.  It seems we must agree to disagree on this.  