Maybe we will have a return of a "Black Death equivalent" situation from a resistant superbug where people get infected and the treatment is palliative care. Whatever happens it is nothing new for humanity it will be a return to the past
Antibiotics resistance It is tricky situation. As patient simply presents unwell and your role is to treat the patient immediately with powerful broad antibiotics that can cover all or many potential organism before you can isolate the specific bacteria responsible. Only when a culture results is positive for a specific bacteria will the choice of antibiotics is narrowed down to a narrow spectrum to specifically targeting the organism. However that can be multiple days of antibiotics before people get the results. In an ideal world people will come in and doctors will magically know exactly what organism is responsible but that doesn't exist yet
as doctors rather role is to treat the individual and the underlying philosophy (in fact the motto of the hospital) is to treat every patient as you are treating a family and friend. Your number one priority is to be an advocate for that individual patient So there is a tendency to err on the side of caution and used the more powerful antibiotics to treat the illness
Hospitals are dealing with by installing a antibiotics stewardship. Where a group of people completely detached and not involved from patient care have to approved certain powerful antibiotics usage and doctors have to ring them up and justify their use before they can approve the usage of antibiotics.
Still doctors can still prescribe everything for the first 48 hours, it's only continuing therapy for over 48 hours will you need approval. Again it's based on the idea that in an emergency everything is on the table to protect that individual life