Sorry to contradict you, but that is exactly what is happening in the USA today. Speakers of other Standard variants and indeed taking classes in using Standard American English. The question is, why don't Standard American English speakers, want

Tallulah Tam wrote: I feel that Alan Jay Lerner was not so concerned about his own grammar when he wrote the song, he insults the intelligence of the audience by using the word "hung" incorrectly, especially when putting the words into the mouth