I think that's gen Z. For the younger half, you might have to decide whether or not a Chromebook qualifies as a PC, but idk if it even matters because Mac/Windows PCs are still necessary for work or used for games.
I too am quite fearful of the fact that I know zero kids under the age of 15 who have any interest in learning how computers work, despite being completely surrounded by them since age 8 or 9 (via school-issued Chromebooks).
Now I do know a lot of kids under 15 doing computer tinkering, usually gaming PCs. If anything, I'm worried that they do it too much.