My point was that both hands have plenty to do so handedness doesn't come into the musical learning process.
I don't believe I would have found it any more difficult to graduate from squawks to listenable, eventually to toneful, on a lefty violin. Maybe there's some advantage to righties to doing the bowing of strings with the dominant hand and arm, but I reckon it has to be tiny because the fingering is so mightily complex also. Advantage to the band of having everyone in neat rows not banging into each other, overwhelming!