I don't think this is about dialects being associated with any sort of people group. I think it's about having a standard way of speaking in a professional environment. And deviating from that may cause some people to have a negative bias against you.
That's a really great point. The very fact that I do mentally associate my friends accent that way is part of the problem. It's a problem that I hope I am getting better at overcoming.
I'd rather by a hypocrite and say it's wrong than agree to the idea that it's okay to need to modify the way you speak to avoid being disqualified by society.
Isn't that the point? Your stereotype was wrong but you still stereotyped him, and he had to overcome it.
Interestingly, double negatives were standard in English up until about 200 years ago, when English speakers wanted their language to be more like Latin-- that is, civilized and refined. So they changed it.
An interesting part of AAVE is that is has verbs conjugated by tense and aspect: https://en.wikipedia.org/wiki/African_American_Vernacular_En... . Aspect is something standard English doesn't have a grammatical case of.
For example, what's known as the "habitual be".
In SAE, one would say something like "Sam is walking that route to the store and does so regularly." In AAVE, an equivalent statement would be "Sam be walking to the store that way."
The habitual quality of the action is what would allow for the use of the habitual be. One would not say it for an activity that is only expected to happen once.
To further illustrate, in SAE you'd say "He's dying." In AAVE, you would not say "He be dying." because it's not habitual.
There are many others but I think this is one of the easiest to explain.
EDIT: Judging by the downvotes, a lot of people disagree with my experience. I'd love to hear your experiences or rationale.
This is an anecdote, not a rule. It's good that no one is judging this guy based on his accent, but that doesn't mean no one ever has or no one ever will. I guarantee some people will hear his accent and subconsciously (usually) form an opinion based on it.
Having an accent isn't the same as speaking a dialect. For example, many Indians speak correct English, but their accent renders them near unintelligble.
As a Texan, I'm always going to have a Texas accent, unless I take pains to minimize it. But I can easily switch to standard English, y'all.
That might be because you're a hint bigoted? (No offence, but why else would you think that?)
(FYI someone from Kansas speaks with an accent - it's not a dialect.)
Or perhaps you've been trained very well by decades of Hollywood/New York representation of 'anyone with a southern accent as stupid?'
Also - you do realize that like 1/3 of Americans speak like that? Have you ever even been to the South?
I'm not American, but I've lived in various American states and come from a 'small town' myself.
After years of wondering how this stereotype exists so strongly in North East/West Coast American culture (i.e. negative view of Southern accents) - I believe it's something done expressly by the creative and Ivy League class: almost always when someone with an 'southern accent' is on TV, they're portrayed in a negative way.
I think that the 'Civil War' North/South divide is in some ways, still ongoing, culturally. Northerners are bigoted towards Southerners.
Where I'm from, in Canada, the accent issue still exists, but not remotely as strongly.
A thick 'Ottawa Valley' accent might mark you as 'a country local' but not 'stupid' or 'racist' or 'redneck'.
FYI Bill Clinton and Jimmy Carter have soft Southern accents.
I recently started a role where I work very closely with a guy from southern Kansas. He speaks with an accent that I would associate with hicks, farmers, non-intellectuals. And true to form, he was raised on a farm. But he's smart, hard working and great to work with. Every day that we work together, I'm learning things that I wouldn't have otherwise understood.
No one criticizes him for speaking with his dialect of English. He doesn't have to code switch. He speaks the way he speaks, he's understood and respected. That's what's different about AAVE. It's not just that it's not the dialect of power, it's a dialect people seem to go out of their way to not respect.