I think the endgame is to dump the stock on the public market so investors and execs can cash out and mission accomplished. I don't think there is any viable long term plan.
If you subsidize driving and subsidize riding significantly, people will sign up. A $40 bonus covers several rides for a customer so they'll hold onto the app at least until they've used their initial free offering.
There's probably some critical mass for these services to work well and that's going to have at least some effect on whether it makes sense for a new entrant.
Lots of people are still going to own cars, especially as you get to less dense areas where parking isn't difficult or expensive and cars are needed on a daily basis to go places, store things, etc.
What possible advantage, other than fleeting brand recognition, does Lyft or Uber have in a world where self-driving is a standard car feature? Why wouldn't Avis, Hertz, National, <insert new or existing fleet management company here> operate those short-term rentals? Or even the car manufacturers--although based on past behavior--they probably are primarily interested in building cars.
i understand people in dense cities may drive less and some not have a car at all, but a car is people important to anyone outside a city in ways ride share will not replace easily. this has nothing to do with lack of public infrastructure, it’s the benefits of being in control of your time
If you live somewhere that parking's easy, there are a lot of reasons to own your own vehicle which mostly depreciates based on how many miles it's driven anyway. In addition to always having the vehicle available, you can customize it for your needs (sports, kids), use it as a sort of mobile storage locker, install a nice sound system if you're so inclined. If you don't need to drive, I'd expect more people to want a customized work/media entertainment space in their vehicle, not fewer.