Ah well, you hit on a particular area that I know well there! I'm a professional musician/teacher and I would say playing an instrument is a damn sight harder than flying. I take your point about doing it well etc, but how well do you have to do it? I'm certainly not advocating a slack approach to flying, far from it. My own desire to be good at something makes me critical of my own flying and the desire to do it better, but if you play a bum note every man and his dog will know, if you touch down 20 ft further than you intended it may give you a 'bugger' moment but no one else will be the wiser.