These two articles: In the Sharing Economy, Workers Find Both Freedom and Uncertainty and Is owning overrated? (both from the NYTimes) look at how people are changing their how they work and what they own in the new (American) economy. I don’t think there is one thing driving these changes. Partially it is how people feel about work, but also what type of work is available to them. Plus technology is allowing for people to work and own in ways not available before.
I found the first article depressing. My hope is that as more companies like this come along, they will need to compete more and this will be better for the workers. Indeed, this seems to be happening to Uber as Lyft (and likely others) come along. As for renting, I think there is a limit to this. While it makes sense to rent some things, I believe that subset is alot smaller than one may initially imagine. What may happen is that people own things for smaller windows.
What seems certain is that the days of working for one employer for along period of time is only going to decline further. Additionally people may conspicuously rent or hold for smaller periods of time and then release things.
Time and changes in the economy will tell.