@EdBoatConnoisseur @theorytoe It's context dependent. It was incredibly useful when I taught English to foreigners and played middleman with American tourists for pocket change, but back in the USA there's very little use. I tried my hand at teaching but amerimutts have no desire to learn anything so it's mostly moot.
I'm also pretty sure there are passive boons to learning languages like cognitive exercise, or using it to strengthen English vocabulary, or those one-off bus rides where you can understand 100% of what everyone is saying and they don't know is a great feeling.