Guest Cj, What is the correct accent and pronouncement of the English language?
Most people would say received or Kings/Queens English.
That is a regional English from the Midlands and parts of Southern England which was adopted by the upper classes and academics.
Because those people had a such a high opinion of themselves they considered their speech to be superior to the accents and dialects of the ordinary folk,and therefore correct.
See here https://en.wikipedia.org/wiki/Received_Pronunciation
The only need for a standard English is to ensure you can be understood in all parts of the country.
If everyone in the conversation is familiar with the accent or dialect being spoken be it Geordie or received Englishit doesn't matter,and often adds richness and colour to the conversation.