lol i take it back, even GPT-3.5 gives a better answer than you (although it does also refuse to cite any sources 🙃)

However, based on available data and observations ... business applications are often cited as among the most prevalent uses.

It'd be awesome to live in a world where tourists are making efforts to speak the local language, but back here in reality they mostly just stick to tour guides who speak their language (and machine learning translation is pretty useless for tourism anyway) – and as well as business meetings, you're forgetting politics and language education.