I have served more that 25 years as a doctor, in Armed Forces. The selection for becoming a pilot is done only after certain attributes of becoming a SAFE pilot are confirmed through various tests. Any error means loss of life of self or others. It is done because, piloting requires certain kind of natural attributes, which can't be cultivated. Just like drivers - some are more accident prone than others. Similarly, a doctor needs to have special qualities.

Just look at doctors around you. You may conclude that one is more suitable than the other, for a doctor's profession. Some doctors are not frustrated, nor stressed easily, they are content and - they can be found studying books at any age. Should some aptitude test be introduced to produce, more compatible, more productive, more content, less frustrated doctors? Kindly suggest.