Earlier quoted context omitted.
Aren’t they bad examples? There’s a distinction between an extremely rare occurrence of biological factors like being 7 feet tall in order to succeed, and that of needing a decent education in order to think critically.
Some people just cannot wrap their head around pointers. Some just do not get recursion no matter what. I used to teach CS, and tutor in CS. It is as rare as being 7 feet tall, sadly. And without understanding indirection and recursion, the most you'll ever do is ...well..not much...
Now pointers... yeah. I use those a fair amount.