I thought most all computers work simply and automatically. But my
mother's in her 80s and has had several computers (with several
versions of Windows), and most every time I visit her, I have to get
it working again for her.

It's not the OS, it's not the printer, and she objects vigorously to
any implication that it's her.

My printer predates my Mac by a decade. My wife's is pretty new. I
can use them both with no problem from my Mac.

--
"In no part of the constitution is more wisdom to be found,
than in the clause which confides the question of war or peace
to the legislature, and not to the executive department."

- James Madison