There are certainly sections of the US where English isn’t the main language. There are a LOT of different cultures, from African American cultures, to souther

There are certainly sections of the US where English isn’t the main language. There are a LOT of different cultures, from African American cultures, to southern, to French in Louisiana, to Cuban in Florida, to Mexican in the southwest, etc etc etc. There were places in Vietnam I could communicate easier than parts of the US.