>> Yep, everybody and their mother that I went to school with aspired to become a doctor. There should be absolutely no shortage.

There is a shortage...sort of...there is a very limited quota of Medical Resident spots opened up by various AMA medical boards (read: cartel.) There are a line of aspiring physicians, but they can only practice as board certified specialists if the boards open up seats, and there is a forced constrained supply (probably to increase wages for those inside the club.)