I'd like to headcanon that someone can elect certain exceptions to the UT for cultural reasons. I mean, Q was constantly speaking French and the UT didn't translate it. And on the one hand, yes he's a Q, but I think it's important to be able to represent your culture.

Especially if someone is from a marginalised culture or if you're studying xenolinguistics, it's important to get a bit of that linguistic exposure. I'm learning the local Indigenous language, and I often use words from it in English conversations with monolinguals, because I think it's super important for immigrants to pick up some local culture. My family immigrated to Australia from England many generations ago, and I'm the first of us to learn any of the local language. That's a disgrace. We're terrible immigrants.