They’re not going to be asked to get a high score on Tetris. A user-friendly system, one easy enough even for those with “issues” will most certainly be implemented.
And that's a great idea, but I'm betting the farm that a kiosk will still be a touchscreen, and there are a LOT of older people who either cannot see well enough to use one, or who have issues with touch screens not responding to their fingers. (And not just the elderly. Workers in some manual occupations (who develop callused fingers) and people who have certain chronic diseases, such as Reynaud's or rheumatoid arthritis, also often have trouble with them.
DH & I are still a few years short of official retirement age, but both of us have begun experiencing difficulties with touch screens not responding in the last year or so. If a kiosk is meant to be an alternative for people who cannot easily use phone apps, then it should be set up with actual buttons so that it can be used by the blind as well.
One of the most ironic things I've seen in my time was a medical building directory kiosk that notified blind people that it could be operated by voice command -- with a printed message on the screen. I didn't see a braille label on it anywhere that would let a blind person discover that, even if they somehow know that they are standing in front of an electronic building directory. I have a legally-blind friend who can manage a phone for the most part, but she has the largest phone she could get, and she has to hold it 2 inches from to her eye to read it, which makes it very awkward to operate, because she has to get her hand between the phone and her face and still manage to touch the right spot.
This part of the equation matters a lot more for a ride service like Uber than it does for most other kinds of services, because people who cannot drive for whatever reason make up a very large part of their clientele, particularly in areas with unreliable public transit.