A comment I made (about cursive and shorthand) in April 2022; I was put in mind of it by some comments I came across about various AI programs:
You should not trust anyone trying to convince you that anything learnable is obsolete; this is a term that is only appropriate to tools with very specific purposes. Moreover, I think that if you are actually teaching it, it is not obsolete. If people are learning shorthand, shorthand is not obsolete. If people are learning Old Norse, Old Norse is not obsolete. If people learn how to build a steam engine, steam engine design is not obsolete. If people are learning it, it is not obsolete. And part of this is that, if you can learn something, you genuinely have options now that you wouldn't have at all if you didn't. If you keep up your learning of it, even if only by refreshing your memory, you continue to have those options. Maybe you'll use your Boyd's syllabic shorthand or your Gregg shorthand, and maybe you will not; but as long as you know it, it is not obsolete, it is just, at most, uncommon. Perhaps it stops being mainstream and becomes a hobbyist's field, perhaps it becomes less a general field and more a specialized one, but there is no sense in which it is obsolete. What can be learned and retained has no obsolescence.