That example is not relevant in the slightest. Setting up a router quite clearly requires prior knowledge, even if that knowledge is something implicit like "familiarity with navigating Web UIs" or "general familiarity with basic networking concepts".
Neither of those are applicable to doing laundry. There's literally no knowledge required other than "clothes and detergent go into machine". Hell, you don't even have to know WHERE to put detergent because machines are variable enough that they usually just tell you where to put detergent.
Honestly, that stuff is a lot harder to do than you seem to think it is. My gf has never even bothered separating whites and colors and she's never ruined any article of clothing in the laundry. By contrast, setting up a router is not something you can just feel your way through without _any_ prior knowledge (even prior knowledge unrelated to that specific model). Shit, without prior knowledge you couldn't even get to the router config page.
> Or mixed ammonia and bleach to clean a floor?
The first part of your comment was a reasonable point, but what the hell are you talking about here? You do your laundry using bleach and ammonia....on your floor?
So you screw up once and you learn. Why do you have to learn now, when your labor is in demand, rather than later (accepting OP premise) when the value of your labor has been arbitraged away?
Neither of those are applicable to doing laundry. There's literally no knowledge required other than "clothes and detergent go into machine". Hell, you don't even have to know WHERE to put detergent because machines are variable enough that they usually just tell you where to put detergent.