If we're talking about home desktop users (I'm including laptops, but not phones/tablets), I think that number is on the decline. 10-20 years ago, you generally needed a computer to function. Now, I use my desktop for some games and to do taxes. And last year, I actually did taxes on my phone (I had newborn twins so sitting down at a computer for any meaningful amount of time was not happening). It was a little bit of a pain, but totally do-able. My mom didn't bother getting another desktop after hers died a year ago.

Mobile devices usually don't encourage tech savviness and it seems to be the direction most personal use of computers is going.