U.S.-focused but clearly relevant to Australia as well:
“Today, primary care is being squeezed from all sides. Long-standing patient-doctor relationships, once the foundation of medical treatment, are becoming less common: The number of Americans who say their source of medical care is a personal physician has been steadily declining. That is especially true for younger patients: As of 2018, nearly half of adults under 30 said they did not have a primary care doctor.
Many opt instead for the convenience offered by urgent care clinics, clinics in retail stores, and even their local emergency room.”