Who stands to gain?
Square, do you speak Latin or any foreign languages?
I'm still mad at my high school counselor for suggesting I take French 101 back in the late 1970's.
Ugh.
Spanish or Latin would have been the way to go.
Though, today the smart language choice, I understand, is Mandarin.
"Speak" would be a bit of an overstatement, in any of those languages.
Started with a year of Spanish in high school, but they didn't have a second year, so I did first year French instead the next year. And then stayed with French for 16 credit hours in college, because I'd already started, needed the language requirement for my liberal arts degree, and, well, the French version of Louisiana's Civil Code of 1825 still governs where there's been no intervening changes in a provision, and I was heading to law school.
And you pick up Latin phrases here and there, especially in law. There's always the internet these days to fill in the blanks.
Have dabbled with Spanish via sundry methods since college and law school -- it's more practical these days -- but I still speak Spanish
mas o menos, mas menos que mas.
Was about to start dabbling instead in Mandarin as had been going out with a girl from Hunan, but she's currently stuck on the other side of the US after having gone back to the PRC for the lunar new year, so that's on hold for a bit.
Anyway -- immersion is the best way to learn a language. With Spanish, when I've gone south of the border and forced myself into situations where I needed to speak and understand the language to get through, my level of fluency has increased exponentially. You no doubt have picked up Spanish very well having spent all that time with Ticas in Costa Rica.