You're right in all points. But still, knowledge is free and out there. MS is here for a long time now. And honestly, if I'm using things without knowing anything about them, who is to blame? Am I not simply ignorant?

If I just walk into traffic, being ignorant of cars that might exist, and get run over. Would it be fair and square to protect ignorant me by prohibiting cars? Or that road?

Consumer-protection is very important, and I'm a great advocate for it. But can't we just assume a tiny amount of reflection? We should protect people from e.g. connected cars, rising prices and whatnot. But If I'd hire a murderer from murder-r-us to mow my lawn, and he kills me. Is it really his fault? How could I have known?

I think there's a certain threshold between not-having-to-know (e.g. relative prices on supermarket's price-tags for easy comparison) and should-be-obvious (e.g. monopolies are never a good thing and never have your interest at heart).

have better to do than becoming sys admins.

Exactly! That's why I go to a mechanic with my car and listen to his advice, as I have zero clue about how that car even works. And it's also obvious I don't install anything myself or just buy brand X because "everyone does". I ask professionals.i don't decide, I delegate.