Foot patrols have been abolished in most places.It just too expensive in terms of manpower when the force is being reduced.Most foot patrols are only for places where there is a chance of trouble like near a football match or large event. A Policeman can cover a far greater area in a car.
When I go to hospital now - I don't know the difference, between doctor, nurse, the guys in scrubs, eh - they all wear a tunic and pair of trousers. Takes the distinguishment from them I say. I loved the spotless white coat and skirt for the ladies and black tights and the really-ironed trousers by the men.
Each Hospital usually has a guide for patients in order they know who is who by their outfits/uniform. It's important you know who are speaking to whilst in there.