You probably won't ever speak Mandarin either. Not that Zeni can actually speak any other language, but learning different languages is a valuable exercise in its own right.
Learning different languages, even Danish, is valuable in understanding modern English both by comparing the languages to common roots and also in seeing how each language evolves (it's one of the reasons why a word's etymology is more important than its definition). Learning languages with different root structures also is a valuable exercise in learning the ways with which we process spoken and written word and can be immensely valuable to artists like songwriters, poets/prose writers, and even musicians.
Additionally, learning any language can be a gateway to learning multiple other languages.