Residency is not just a formality. A pre-residency doctor is about as useful as a fresh CS grad who has never seen, or worked on a real codebase in their life.

Except that instead of checking in awful, unmaintainable spaghetti, they'll be making life or death decisions.

I wouldn't let an unsupervised zero-work-experience fresh grad be solely responsible for a product. Doctors make important decisions - without any supervision or 'code review' on a daily basis.