Imagine a hospital where a new initiative is taken. Nurses follow doctors during their daily patient rounds for 6 months. Then the nurses are expected to do the rounds instead of the doctors. No doctors are left on the premises.
Its not very clear cut, there are some blurry boundaries, but still, would you want people to use that hospital?
That's an example that hits close to home as 2 close family members are Nurse Practitioners. This is a flawed example because Registered Nurses do not do the same job as a physician and are legally not allowed to learn how to do it. What if the nurses were allowed to shadow the physicians for 4 years? That would be called residency.
What if you have Nurse Practitioners with a Nursing BS, 4 years of nursing experience, a Masters degree in NP, and 4 years of experience diagnosing, managing complex conditions, etc.?
I personally know of several examples of Nurse Practitioners who are a drop-in replacement for an MD and that was achieved through work experience.
Its not very clear cut, there are some blurry boundaries, but still, would you want people to use that hospital?