I'm not sure 1 is true in aggregate. If people are ride sharing, won't the fleet size shrink? (Less taxis or less personal cars) It isn't like there are massiv

I'm not sure 1 is true in aggregate. If people are ride sharing, won't the fleet size shrink? (Less taxis or less personal cars) It isn't like there are massive fleets of idle Ubers. If there isn't anyone to pick up, the drivers do something else.