That’s what evolution is, change,:
http://dictionary.reference.com/browse/evolution
1. any process of formation or growth; development: the evolution of a language; the evolution of the airplane.
Look they even used language as an example. And no you don’t get to choose, evolution happens. The most you get to choose is whether you’ll move with it or become an anachronistic. Evolve with life or fall behind the curve.
Evolution is not merely change. Please consult Mr. Darwin.
Those who control the cultural high ground do get to influence the direction of change. Non-prescriptivism, along with invented spelling and rain forest algebra, are simply the choices of the postmoderns in control of academia, the publishing industry, and the media.