Uber doesn't have much of a moat or lock-in effect. I just switched one day from being a frequent Uber rider to 100% using Lyft, simply because I don't like Uber's behavior as a company. The prices are so close it doesn't make any practical difference to me. Anecdotally, among my friends I also see Lyft becoming the default, and sometimes price-checking with Uber. If Waymo or whoever came out tomorrow with a cheaper/…
With their new loyalty program and Uber Visa card, I definitely think they are trying hard to build that lock-in effect. Once that happens, I do think they'll reap the rewards of their platform. It's just hard at first. I hope they can pull it off tho. But then again, I do know a lot of Uber drivers who only use Lyft personally for rides.
Why? I mean, most taxi cab companies have rideshare apps. They were a first mover and showed us the way, but they burned a ton of cash and did some really shitty things. Heck, they've killed more than a few people.