SA speak posh

I was interested to find an article claiming that most South Australians speak posh; compared with the rest of Australians.

There is Adelaide English and 3 regional varieties of English; Eyre and Yorke Peninsula English, South East South Australia English and Northern South Australia English.

Also, due to the prevalence of the South Australian long a, the South Australian accent appears to be closer to a cultivated and posh sound compared with dialects in other Australian States.

It seems that we're a posh mob (in SA).

Have a read. Here's the link ...
https://en.m.wikipedia.org/wiki/South_Australian_English