I’m here to disprove this with fact
Mario debuted in 1981 in Donkey Kong, therefore he spent 9 years preparing to become a doctor.
Tut-tut. I present, for your consideration, Super Mario Bros. circa 1983, in which the defendant, Mr. Mario Mario can be seen physically assaulting his brother, Mr. Luigi Mario, thereby violating the first obligation of his Hippocratic Oath: First, do no harm. I submit that Mr. Mario Mario's medical practice was in lapse at the time of his prescribing pharmaceuticals for "germs" in 1990 owing to this gross breach of his obligation to the medical profession.