Is it a coincidence that the accents in Chattanooga, Tennessee sound similar to the accents in surrounding states?

@Nitedoc We "over here" sometimes hear English people saying similarly.

Many people seem not to realise is that if still living in their native region those around them will have similar accents, so they do not notice that, oh yes, they do have an accent!

I am a Southern English native and resident but some people around me discern my inherited traces of Midlands accent and picked-up Yorkshire dialect fragments, and think I am from "Oop North". However, when I visit the North of England the locals all immediately know I am a Southerner even if they detect the Midlands and any accidental, occasional Yorkshire-ism like "were" for "was".