I pronounce several words as some Brits and Europeans do, such as "restaurant", because it's the way that many generations of Americans also said it and some of us and our progeny still do.
I was raised by a Granny born in 1890. At almost 65, I can’t get rid of all the anachronistic Tidewater expressions; or quit spelling words ending in ‘-or’ as they were spelled in the old books I grew up with...
English is English. People forget where we came from, and how long it takes for language to really change all over.
(But it’s sad to me that television has made such inroads on making everyone sound and express themselves so blandly the same...)