I like to build my own PC and also help friends. Most PC gamers also build their own PC. Most parts come with instructions and almost all pieces fit nicely, its kinda like building Lego. I switched to Linux a couple of years back. But last month I helped a friend build a PC and when installing Windows 10 it just said "missing drivers" with no clue. Then my friend went to a computer shop and they installed Windows without any issue.
As a 26 year old working in the tech industry, I see lots of newer tech around that I'd say is threatening, and I have for several years now. Though I suppose I'm probably in the minority. :)
The trend of technology today seems to be towards more centralized ownership of everything we interact with, when the platform providers can get away with it.
20 years ago you would buy a book and it was yours. You obviously still can now, but if you buy an ebook from Amazon, they can take it back from you. (Or if you poorly chose to buy an ebook from Microsoft... well, they all stopped working recently.)
IBM, though never a bastion of openness, had a very detailed repair manual[0] for the original IBM PC. Sure, modern machines don't have nearly as many user-serviceable parts, but in many cases today you'll find legal and technological barriers to repair in place of even the most basic of repair manuals.
It's a trend that's hard to fight, and opting out means sacrificing a lot of convenience, but I try all the same.
[0] http://classiccomputers.info/down/IBM/IBM_PC_5150/IBM_5150_H...