Important Question

Is it something only English people do, to be unable to pronounce R's? I have never heard of an American who could not do that but English people who cannot are thick on the ground e.g. Roy Jenkins. It also seems to turn up a lot in English comedy. Consider The Life of Brian.


Surely there is no anatomical reason behind this. Is it a psychological tic that affects these people? Beaten in their childhood with rhotive phonemes?