[nradov]

Surgeons have to complete the same amount of training regardless of how many hours they end up working per week after training. There is just no practical way to train three times as many surgeons: the teaching hospitals have nowhere near enough capacity.

[chii]

In japan, they have large teaching hospitals where patients get treatment from several doctors, effectively free of charge, because you're paired with one senior doctor and several training doctors.

[nradov]

US teaching hospitals already have multiple residents delivering patient care under the supervision of an attending physician.