It&#x27;s certainly not &quot;sharing&quot;, I agree, but I find it useful to distinguish (in regulations) between taxi vs livery services in the sense that only the former can accept line-of-sight street hails, while the latter must only accept centrally dispatched requests. The former carries a lot of public safety risks that the latter doesn&#x27;t, and cities have historically (long before Uber) regulated the former a lot more harshly.