Earlier quoted context omitted.
> that there's no such thing as "plain text" Please show me a computing device that cannot deal with ASCII. And UTF-8 has, by now, reached a level of ubiquity that encompasses almost everything in IT as well.
The Commodore 64 I’m building could probably be taught how to read ASCII with enough effort, but out of the box it can’t. I appreciate modern computers conform to standards, but that doesn’t mean that these standards have always existed, or will always exist.
> that doesn’t mean that these standards have always existed, or will always exist
These are irrelevant "points". ASCII will still be in use when human civilization ends soon (possibly next week due to nuclear war, or else in a few hundred years due to global warming).