I used to hold doctors on a pedestal till classmates of mine who were not that smart became doctors. One blatantly cheated in high school.
It's economically smart to become a doctor.. but I think medicine should be cookbook and include checklists to follow.
Many people can't pay the cost to be a doctor. The filter seems to be less intelligence and more whether you are willing and able to forego income for a long period of time. Those with family support are more able to do so. This support is not necessarily monetary. It can be as simple as not having to support your parents.
I think the hardest part is getting accepted into medical school.
What helps you think medical internships and early real-world training//experience is easy, or at least easier than getting into medical school?
Prepare to have your heart broken. This is some sad stuff.