An article in the Economics noticed that the National Health Service (NHS) in the United Kingdom is "free at the point of delivery."

Question: The same article suggested that the views of the average person in the United Kingdom "have made it impossible even to think about boosting NHS revenue by charging patients a nominal sum for visiting the doctor." Briefly discuss what the advantages the NHS might receive if it were allowed to charge patients for doctor's visits, as happens in most other countries, including the United States.