Earlier quoted context omitted.
This is a ridiculous out of touch take. Of course young people know what desktop computing is like: they use it at school for class and use it at home for gaming. Have you considered that people might prefer mobile is preferable because it’s, well, mobile and you don’t have to lug a big ol’ machine around?
Most schools use tablets or Chromebooks, especially in the early years. Neither gives access to a system which has desktop level capabilities. Both are locked down consumption platforms.
At what age does someone need root access to become interested in a career in CS/IT/web dev/whatever?
Or, if not root access, like what kind of "desktop level capabilities" should I have had that I did not have, given that I did not have a desktop as a teenager or younger?
I am Gen X. I can think of exactly 0 friends who had their own desktops as teenagers. (Their own, as in were not really their parents' work computer, did not have to share with the family, could do whatever they wanted with, etc.)