Originally Posted by
rett
Yes, but that is in an environment where there is a lot of contact between people with different backgrounds, different styles and so on. You get a melting pot effect promoting rapid change. Your situation is the opposite of a very remote mountain village in an era before tv, radio, youtube, newspapers, magazines etc.
In that situation the practice will likely have been much more conservative and have changed very slowly, by analogy with similar processes in linguistics and dialectology.