[zo1]

Sure, the same resource is being utilized by many people. But that's not sharing, as sharing implies either co-ownership or free-use to others other than the owner.

It's renting utility of a resource for a fix period of time. Not sharing, or part of a "share-economy". Though I can understand calling it a "share-economy" in order to combat the massive propaganda movement by entrenched taxi lobbies/industries/groups that seem to want to vilify services such as uber/lyft/etc.