Grandma70s
The problem is that in England speech is associated with social status and education, like it or not. RP (Received Pronunciation, standard English) is the same all over the country.
I am trying to think of examples…..Alexander Armstrong, for instance, comes from the north east. Not a hint of that in his speech. I’m sure there are many others.
When I was young, if you had a local accent you tried to alter it, to speak with an RP accent. Now, people don’t do that so much. I think the change came, like so many other social changes, in the 1960s. The Beatles were partly responsible. They kept their Scouse accents and were not ashamed of them. Their accents are quite mild - I have encountered incomprehensible scouse accents. It’s really embarrassing when you can’t understand peoples speech.
Communication is a two-way process. It consists of a receiver as well as a broadcaster. If the receiver puts up barriers from the outset ("Oh no - a Glaswegian accent! I'll never be able to understand this!"), the process is hindered. If you are open-minded enough to listen properly, you will understand.
BTW, RP is not the same as Standard English. The first is an accent, the second a dialect. Also Scots RP differs from English RP, although for both accents, Standard English is broadly the same (with a few minor exceptions). Standard Scots is another story altogether!