Eolian
Perhaps slightly going off the topic of the thread here, but:
I used to teach French, German and Mandarin at secondary level. Mandarin is truly not all that hard.
Grammatically it is far simpler than German or French as the language has no articles or gender, and verbs are not inflected at all.
Pronunciation is different, because of the tones, but not necessarily harder.
Learning to read and write the characters is, of course, the most time-consuming part of Chinese, but not nearly as daunting as it might appear before one has started learning. Around 80% are essentially phonetic, so once some of the basics have been memorised, the others essentially build on that basis, as well as having their own fascinating internal logic. (As an example 竹 means bamboo (clearly a pictogram). Now, for things made -or formerly made - with bamboo, this will now appear within the character. For example, 笔 (brush).)
So, if you do get the chance to learn, seize it!
I'd actually logged in to complain about French being called outdated and non-useful, as well. A language spoken not only in France, but huge swathes of Africa, Canada, Mauritius, Haiti, New Caledonia, Tahiti, Reunion, and more...
Back when I was younger and travelled more, knowing French frequently made me the only person in a group of English speakers who could talk to people from Morocco, Algeria, Senegal, Chad, and other places. It definitely was useful to me.