Graduate students are more challenging, demanding, and questioning
Both. Some students have a natural gift that can serve as a grounding for focused training, while others can be nurtured into becoming good doctors. Some students, however, will never make good doctors, no matter how people try to help them.
From 30 years' experience of teaching both school leavers and graduates, patients would be better served by doctors entering medical school after the age of 22. Entrance to medical school should be by a specially designed entrance examination that tests reasoning rather than factual recall. It follows that learning should also be through reasoning and logic, rather than by rote.