The New Yorker May 29, 2012
Repugnant as it may be, the simple answer is that we need to learn prescriptive English because that’s the way the people in power communicate. As far as daily survival is concerned, it doesn’t matter whether the origins of this linguistic power structure are racist, classist, or élitist, or whether they’re based on the whims of dead white males. This is how the system works right now, today, and in order to best get the attention of those in power, to begin to effect change, we must be able to use their dialect. We must know their rules.