Everyone who speaks english has an accent which reflects your origins, background and socio-economic status.

I've observed the American accent is typified by things including more nasal intonations and an emphasis on the "a" so that "aunt" and "ant" sound the same other than a long emphasis on the a in the former.

Except listening to people of a lower socio-economic background in B.C. (who sometimes sound vaguely Scottish), I can say I don;t hear too much "eh" in formal conversation much less "aboot".