I am regularly asked questions to which I do not know the answer. As
a rule, I answer them. Correctly.
I haven't taken a class on anything about computers in over twenty
years. I have never received any training on MacOS, Windows, or
Linux. I quit using Windows on a regular basis at least 10 years
ago. I have never used a Mac for much more than a music machine.
Still, I seem to be better at using them than most everyone I know,
and I am surrounded by people who are generally pretty smart.