The older I get, the more I realize that individual variation in humans is truly enormous. Any trait you could pick is much more widely distributed than any individual human can see from their perspective.
Just the other day I was watching a video on youtube, of someone absolutely struggling at a task that had a built-in checklist, verification steps, pictures, and basically (in my opinion) perfect guidance. This is something where, if I was doing it, I would just... do the steps. in order. and it would work, probably... 99.9% of the time, the first time, and relatively quickly, to boot.
I watched them fail to succeed like... 5 times in a row. At no point did they actually complete all the steps and verification in order. And this was a reasonable, intelligent, thoughtful, thorough person. They just could not follow a checklist, visual or written instructions, probably to literally save their life.