It might be a matter of just being under a rock for the last 10-20 years. Retail PoS systems have changed quite a bit in that time, but how you interface with gas pumps and dining, hasn’t changed at all.

Also: a lot of folks navigate digital systems by rote memorization and don’t read or think all that much. If you throw a new interface in front of them, just sit back and watch the bewilderment. Gotta give people like that time to learn it all.