I think this is a symptom of hospitals being understaffed, whether that's from a deliberate lack of hiring or an actual labor shortage. I feel like many of the problems in this aspect of healthcare could be solved if doctors, nurses, etc weren't run ragged with insanely long shifts and expected to care for a ton of patients.
I don't know how to respond to your post. I'll try: Money. Skilled people cost money, a lot of money. I disagree with both of these: <<deliberate lack of hiring or an actual labor shortage>> They are making do with the amount of money that is available. It would be wiser to focus on why healthcare is so expensive in the United States compared to other highly advanced countries -- France, Germany, Netherlands, Finland, Japan, etc.