The Motor Vehicle Act does not permit people to use devices such as solo wheels, hoverboards, or electric skateboards and unicycles on public roads, including sidewalks
So you're just not allowed to use EUCs at all then? If you're not allowed to use it on a sidewalk, or the road. And let's be honest, American/Canadian cities have extremely unfriendly and unsafe roads for bikers and EUCs to start with.
By making it hostile just means people won't be safe.