Agree with your point. It raises another question for me - if we are talking about shared or non-owned vehicles that people interchangably call and use when they need to go somewhere, aren't we inching closer to the same experience that other means of public transportation provide? And shouldn't we give those equal consideration to a world that is still built for and dominated by cars? For all the benefits we are all citing here, there are still a lot of problems with a world dominated by cars (pollution, the space they take up, the roads they require that cut up communities and are inhospitable to pedestrians / other modes of transportation, etc.)