Even if it is a terrible tool for my purpose, I'd still want my kids to try (under my supervision) and find out the correct way to use it. Then they will be able to judge for themselves the pitfall of those tools.

But yeah, my kid will not have a smartphone/tablet until they are at least 12. It's going to be pen and paper first, then a potato computer (gotta be Linux, they can try installing Wine to play games I guess)

I have a favorite comparison between learning how to use technical devices and learning how to use woodworking tools. You have to start out with the hammer, the chisel, the handsaw for small things first. And then learn to use the lathe, the drill, the bandsaw. Jumping straight to the big tool give you the big risk of losing a few fingers.