The problem as I see it:
A public roadway is a strip of land meant for transportation by motorized vehicles, bicycles and possible horses.
A sidewalk is a pathway along the SIDE of the roadway for people to WALK.
There is IMO no provision in the general laws for the above to be used for recreation or entertainment. That means no motorcycle rides, group bicycle rides, rod runs, racing, stunting, scenic tours, etc.
Similarly a SIDE WALK, is for walking at the side of the road. No bicycles, e-bikes, joggers, skate boards, roller blades, hopscotch, Pogo sticks, loitering, hover boards, Segways, patio bars, lemonade stands etc.
Particularly in large urban areas the land set aside for roads and sidewalks was done decades before the motorcycle, bicycle, e-bike, roller blade etc crazes. THERE IS NO LAND LEFT unless someone wants to tear down the Eaton Centre to widen Yonge Street.
Opposites:
A) In medicine, generally speaking you can not use a new drug, procedure or device unless it has been specifically approved by accredited bodies.
B) In most other fields a person can use anything anywhere unless it has been specifically banned by accredited bodies.
In case B, I don't think there is a specific law against putting wheels on your windsurfer and blasting down a sidewalk. The police would have to use a general purpose catch-all charge. The same goes for any of the above "Toys", thus the problem. Make a new toy and when it becomes a danger to life, limb or enjoyment of life a ban has to be imposed, usually too late.
Misconceptions and miscellaneous:
Motorcyclists have no specific rights in our constitution. A plaza, restaurant etc can ban motorcycles as long at they don't ban only some riders because of race etc. Owners of private property have the right to restrict usage. No heavy trucks, No motorcycles etc. Abuse it and lose it. Why do so many people assume a parking lot is a free venue?
Motorcyclists aren't treasured customers. They don't buy big things. Too often they at best buy a two dollar coffee while taking up two parking spots so they can angle their ride in a cool pose.
It is my understanding that while motorcycle insurance operates under the same general laws as car insurance motorcycles are, in Ontario, considered recreational vehicles. When you p*** people off don't expect them to sign your "Fair motorcycle insurance premiums" petitions. The general public will think minimum $10,000 a year motorcycle premiums will get more idiots off the roads.
Mankind and goats are both known for destroying the environment that supports them. Don't be a goat.