In defense of people, the number of technologies necessary to master in order to fix anything is beyond human capability. I have done welding, plumbing, electrical, carpentry, logging, running heavy equipment, sheet metal, car painting, mechanical work, prototype machining, made simple logic circuits, built a computer, lots of digital photography... but you know I don’t do all of them every day; I have to relearn most of those skills when I take them on. Yet worse than that, even with all those skills there is a lot I cannot fix. I sure as hell don’t know how to fix a smart phone.
Before that were skills to find water, knowing what was safe to eat, hunting small game, and how to avoid being eaten. As an example, humans had relationships with large cats to tell them where the wolves are so that the cats would take the wolves.
Yet wrapped in that knowledge was a mysticism we also lack developed via respect for the extended family.