There's nothing inherent about this. If the promised alternatives to owning cars turn out to be BS, the younger generations will have to own cars whether they want to or not.
That's a pretty big opportunity for any firm that gets you home from the club at 3 AM.
I know that where I live I've started blanching at how much it actually costs to take an Uber, which is now approaching what taxis cost.
And Uber/Lyft work reliably only in urban areas. "Younger generations" will inevitably grow older and may want to move out of tiny, expensive city apartments to larger accomodations outside the city. Guess what. Public infrastructure fills the gap much better than Uber/LyfBolt do (at least in Europe).