Lol, that's cute, say doctors everywhere. With the 8 years of post secondary education and 3-8 years plus of 80 hours a week apprenticeship after that. They figured out doing both long ago. And grad students well on their way too with post doc positions.
Yeah, I realized that after I posted. Architects also have a post-degree apprenticeship period before they can go through licensure (or can even call themselves architects).
Engineers too. A 4-5 year degree, then an exam to get engineer in training status, then a few years apprenticeship, then another exam to get a license that allows them to sign off on projects. Although, a friend of mine never bothered taking the last exam, he just has to work under another engineer.