[quote="ostarella"]Grammar is a set of rules devised so people can actually understand what the other people are saying.[/quote]
That is the French approach. In English it tends to be a delayed documentation of what people actually understand by what they actually say.
If English grammar were authority based, instead of documenting reality, then we wold oll stil be speeking olde englishe. Eventually the dictionaries give in and put new words as well as changed usage into their list of definitions and spellings.
Follow Writer's Digest