Ofcourse there is difference in interpretation between people from different places. Me, being originally from Afghanistan, grew up with two different sort of music: western music and eastern (hindustani classical music). And now, when i play western music on the piano there is some eastern touch in it, indeed. And when i play eastern music, there is a little bit western touch in it.
I am an amature pianist, and have no ambition to play on the stage. So it doesnt matter to me, i dont have to convince the jury at a piano competition. I play for myself, and the way i play, how i interpret music, is the best for me. So like thalbergmad said: why would you learn something different? You play your own feelings, you communicate your own emotions, but by immitating another way of playing you just miss the very essence of music.