As you mention it’s an MA, this suggests that she already has an undergraduate BA? Would be interesting to understand what her course-mates are doing.
I have undergraduate French and Spanish from the 90s, plus business level Portuguese acquired through living for a time in Brazil. I work as a lawyer and I use all three of my languages regularly, but in a more informal way. Our common language at work is English. All our native speaker French and Latin American clients speak and write business English but my language allow me to read source documents with having them translated, or to strengthen relationships through small talk. Eg something happened recently in Brazil that was relevant to my work and I was able to follow the story in the Brazilian media whereas my colleagues without Portuguese could not have done that quite so easily (Google will now translate web pages so well that they probably could have managed, but I was better with the Portuguese search terms needed and I knew what publications were out there). The benefits are all pretty marginal though.
We use official translations for court documents. I haven’t commissioned one for a while but I know we are very very tight and get the agencies to undercut each other all the time.
AI translation is staggeringly good, I have used it for a court judgment in French that I could read but needed to share with non French-speaking colleagues and it captured the judicial writing style beautifully.
To answer a pp, AI does now manage pretty well with humour and idiom. It learns it the same way that human beings learn it.
I now use my languages much more on holiday than at work.
I would suggest something a bit left-field- coding and software development. If your DD is good at languages with logical structures then she may also take to coding language well. A contemporary of mine at university who studied 2 obscure Slavic languages did well that way. I am involved in some IT development projects now at work so have first-hand experience.
Of course, AI now does coding as well, so it’s important to understand how it is affecting career paths there too, but that should be an advantage for someone with no computer science background as it is opening up development jobs to people with less in-depth knowledge because AI and low code platforms do the hard bits. Perhaps she could get involved in the technical side of AI translation products?
Suerte/Bonne chance to her!