> political currents don’t have to move in one direction. It’s not inevitable that endangered languages become extinct. There really isn't any good incentive to learn a language with very few speakers, since unless you already know a speaker, you really can't practice the real language. People were a few years ago at least hoping llms could help preserve the languages, but more most of them, there just aren't enough…
Learn Sanskrit. You were writing in a descendant language just now. If you learnt the roots, you would understand the descendants better. And they are your tools, and knowing your tools is important.
Other more obscure languages? Well, as implied, languages are related... So studying the network clarifies the whole.