Real engineering is expensive. And hard. moving atoms around is tough. I've never cut stone, but I've melted and cast copper and aluminum. That's real and dangerous work.
Computation is cheap and plentiful. And I kinda like having full control of "stuff". But maybe we do need licensing or personal liability. If I could wave a magic wand, and make that exist, I don't really know what rules I'd put in place.
How do you think people should get skilled up?