There're some Americans that do the R thing at the end as well. There's no such thing as a "British accent" there's like 25 distinct regional accents in England alone, not including like Scotland and Wales. Also, the English language, is flexible in that a wide variety of sounds and ways of speaking can develop and still be correct. In America, there's the Massachusetts accent, the New York accent, the Midatlantic, the Southern, the Texan, the African American, the Minnesotan, there's tons of accents and they're not all "butchering" the English language. If so what's the gold standard? Even the royalty of England has their own accent. Is that the official accent?