How often do they use mice and keyboards? I get what people who don't use shortcuts look like to you all, but I know how many times I've had to help someone older who works with computers, including just straight up DOS-looking internal text prompt systems fine, remember how to highlight text on a phone to copy, or even be able to look up their apps without clicking on the homescreen ones.

Some people just really only get good with one tool at a time and don't have the energy for more, and for the younger average person that tool's gonna be the one they grew up with, the phone.