Most other English-speaking people in the world deal with different accents reasonably often in media and their lives, the American accent most of all. I think

Most other English-speaking people in the world deal with different accents reasonably often in media and their lives, the American accent most of all. I think it's more that it's easy for American's to live in a bubble, because the country is so large - it's sometimes odd to see American media putting subtitles on strongly accented but otherwise perfectly intelligible english speakers, for instance.