One point - those who were building computers before it was “plug the thing into the thing that’s labelled for it and whose plug prevents your putting it in backwards or otherwise fucking up in any way; repeat” have a foundational knowledge of hardware that is irreplaceable.

When you actually know what the gizmos inside the shiny black (or RGB with a goofy dragon on it or whatever) box does, you can sniff out problems, come up with solutions, and think laterally in a way that is much more difficult for someone without that knowledge.

Don’t take your old person skills for granted.