I believe pedestrians should travel on the right side of sidewalks, the right side of store aisles and the right side of mall corridors. It's very frustrating trying to keep your distance from Covid carriers, flu bug carriers, cold carriers, phone readers and kid carriers with spare kids running along side when the oddballs come straight at you. It works for vehicles so; why not!
For dog walkers training a pup to heel(not hunting dogs)I'd suggest training them to your right or both for these reasons:
1) they can walk on grass instead of hot black pavement their paws aren't made for when living indoors mist of the time
2) they are less apt to lunge or be lunged at by dog walkers coming the other way
3) they are less apt to get spooked or hit by bikes going either way
4) it's more comfortable for pedestrians passing from behind or from the front who do not know your dog(s).
As for adult bicycles in areas like 18th & Park to the overpass or 18th & Richmond to 13th & Richmond and the like; I'd like to see all bikes allowed on sidewalks if they stay right and slow down to a near stop and a nice $50. fine waiting at the end of the sidewalk/walking path from a by-law officer or a cop for not having a bell or a horn or not using it properly for the 'fun' of scaring people and dogs. By properly, I mean announcing your intention to pass starting from a good 100 yards back
Why allow them on these 2 sidewalks? Because getting hit on your bike by a bad driver hurts like h***, I know!! I've saved my life many times but; it's tricky when they do a wide u-turn and leave no options!!
For those who don't ride bikes between the overpass and Wendy's, we have to portage over to 16th and 15th depending on which way you're going and maneuver around 1000's of spoke busting pot holes which are difficult to see wearing sunglasses on shaded streets. Easy in a car but not with your head in the sun....try it!!