

I honestly think it’s because in measures of distance, a US American could be considered well-traveled without ever having left the United States. Living in DC and visiting Florida or California is a big trip logistically. I love to travel and have moved a LOT and I have just barely been to every state in the US (some I only drove through, fuck rural Nebraska). While I disagree personally, I think that most Americans just don’t see the immediate utility in learning other languages.
Not learning Spanish in school as a requirement at this point is just racism, though.
Powerful lobbies are surpressing the number of doctors practicing in the US. If a foreign doctor wants to emigrate and practice here they cannot until they pass TOEFL (reasonable) AND finish US-based residencies, of which there are few. I know a Russian dermatologist who has been a receptionist for years because she cannot get ECFMG certification. Some states are wising up and waiving the residencies, but way more need to do it.