I think you'd have to ask the City of Toronto. It's up to city council to decide whether or not they want to support what you call PUDO, which is pickup and drop-off. It's not uncommon in the city of Toronto to allocate public parking spots for the pickup and drop-off of children. They do it for day cares. They do it for schools. You have to pass this specific municipal bylaw in order to authorize that.
That's the primary impediment we've had here. The neighbours do not want to have those spots given up for pickup and drop-off, because it would impede their ability to park in front of their house in downtown Toronto.