British people, can a people be backward due to either the way their inherited accent makes them think, or the way their ancestors thought,?

Question

causing that regional accent, in the past

Answer 1

Accents have nothing to do with intelligence. 

However, it is possible that some people might assume a lack of intelligence because the speaker has a regional accent.

Answer 2

Are you implying that accent determines intelligence? If so, then think again, it's a ridiculous idea.

Answer 3

I'm British and I'm struggling to understand the question.

I do wish contributors to YA would read their own writing before hitting the 'submit' button.