And that subject line is a little ambiguous.
Apple stores run one-to-one training for new users. It costs but it's far cheaper than bricking a two-thousand dollar Mac. Some larger retail stores also have tutorials. And in UKland the Government has "computer literacy" schemes. I have no idea how good those are.
But your point about treating IT tech as a white good is very valid. We *should* be able to just buy kit, plug it into the mains and start surfing, printing and VOIPing. Macs get close to that, sometimes but Wintel boxen are often more problematic [which gave me a fairly good living for thirty-odd years]. So long as you do nothing innovative or weird Wintel boxen *can* "just work" and they are getting very much better at it but even W8 can take a bit of fiddling to get working perfectly.
What many people want is a box of tech as mature as a TV or telephone, what they often get is a quirky Model T with strange control interfaces.
Give it another forty years and computer tech will be as reliable, accessible and easy-to-use as motor cars. Maybe more so.
We're only three decades or so into mass IT use. We should be pleased with how far we've come.
And, yes, pushing for better.