For me I dont care about the data they’re collecting (I work on the other side of the customer data collection process for a relatively evil company). It’s more about the application of it from a guest experience POV. Like
@Mad Dog said, it was clunky and slow when they tried it the first time. Maybe it works better now, sure, but psychologically there’s something more satisfying, to me, about pushing a finger down. Compare the Disney entry process, where the light starts spinning on contact and gets faster and faster as you get closer to verification, and you can brush off an issue by troubleshooting with another finger/using different pressure or angles, etc. vs. just staring at a camera and waiting for something to happen. Having that autonomy to control the process is one of those things people don’t realize they want or have until it’s gone (and the only reason I know about it is because I’ve done consulting work that required research on this topic).