True in very large stretches of the US, as well. Though we also have a bunch of huge regions with beautiful, varied, striking natural environments, of course.
You don't know that for certain though. I'd rather pay extra if an appliance is broken, than wait for a gamble on what may or may not be a decent replacement.
In most of the cases you mentioned, that would be considered a handicap though. In such cases it's a failing on adding an accesability option or secondary option.
Among people, who aren't straight up unable due to handicaps, who couldn't solve them? It seems easy enough that mostly anyone could.
If your starting position is that dyslexia and dyscalculia are handicaps that mean people need to be treated differently, you're failing right out of the gate.
They are quite common problems with a wide spectrum of severity.
Back when you could take your car to a local garage, your car would very likely be repaired by a very clever person who was dyslexic (even dyscalculate) because as a career, men in particular who struggled with written language (or even modestly complex maths -- differential gear yes, differential equation no) could do it and thrive at it.
Should that person be treated as handicapped if they need to fill in a form? Or should forms not be designed to make people waste their time with puzzles or kafkaesque processes of any kind?