And yes, it does mean some limits, but they aren't as severe as many people think.
Why the condescending state-the-bleeding-obvious question? Renting and sharing makes little sense for me personally. I answer a similar question here re taxis and public transport: https://news.ycombinator.com/item?id=31690450
And yes, it does mean some limits, but they aren't as severe as many people think.