Tangentially related to the lack of computer literacy in younger generations, but there are a lot of speed demons on their phones these days. I have high confidence that there are more people in the US that can type faster than 50WPM with the default Android or iOS keyboard than a physical keyboard. At this point I would bet on a cheap phone shaped USB touchscreen to use as a keyboard with a PC. It would be a cool Kickstarter project if its not already before getting cloned by 6-7 companies if successful.

Also looking into using my phone as a keyboard as a write this comment too. I don't know why I have not looked into it sooner, but it seems like a no-brainer now that I am writing this out.

KDE has a phone connection program called KDE Connect that lets you use your phone as input.