We're a long way from the time when appliances were trivial enough that anyone armed with a screwdriver and a basic understanding of electricity could pop them open to make repairs.
Actually, my experience is the opposite.
I try to repair anything that breaks or stops working around here. Usually the failures are relatively simple and obvious, and anyone with (1970's) high-school level skills really ought to be capable of it.
Electronics in particular, almost always fail due to ageing electrolytic capacitors. Frequently they bulge at the top or pop open, making the failure really obvious.
It's just a matter of keeping one's basic skills relevant to the times.
If I cannot fix it, then only rarely will I shell out money for someone else to do so.
Cheers