In Europe if you go 200 miles in any direction you are in a different country with a different language. It is a matter of necessity, especially if you are in business. On the other hand, with what, 300.000,000 American speaking English, and with untold numbers of English speakers in Canada, it really isn't a necessity. But just for fun, I speak passible tourist (ie, bad) German, Dutch and Afrikaans. Also a little Yiddish from having lived in NYC, many years ago. I also know American Sign rather fluently, and British Sign rather less so.
Too bad I didn't learn Spanish while living in NYC. I need to learn it now, just to give proper instructions to the hired help.