Doctors need patients, and if they want more, they really only have two choices. Either they go to where the patients are, or they get the patients to come to where they are. In the past, doctors would make home visits, which means they would go to where the patients were. This was very convenient for the patients, and was medically accepted. There really wasn't much doctors could do in those days, because medical technology was primitive, and in any case, there were very few hospitals.

As technology improved, and doctors started using instruments in order to treat patients, they found it wasn't convenient to carry all these instruments to the patient's house. This is why they started admitting patients to the hospital, where the surgery could be performed much more safely. Hospitals became the focal point of delivering medical care, and this is where doctors started flocking. This was…