I must say, I find the 'walking in one's shoes' argument quite weak and a cop-out... It lends itself too easily to relativism -- and makes it such that none of us can understand others' views because we don't have their life experiences and world views... If this were the case, forums such as this would not exist (it would be rather pointless, no?).As for a doctor making a career change -- no one is bound to pursue a given career... and conversely, no one has a 'right' to a given job... (Look at nurses, who, after making similar dedications in their studies, struggle to find a job!). If you want to make a career change, then go for it and best of luck! That said, I also think the criticisms raised here do have merit... Yes, we all have a right to change career paths -- but, it also should be said that, before choosing any given career path, one should thoroughly research and understand what that career involves... Sometimes we learn these lessons the hard way, but we're all human!