If you had been alive in the US in the 50’s you would have seen the doctors and their patients smoking INSIDE the patients rooms in the hospital.
I worked in the Operating Room at a hospital in Sacramento in the late 60’s. Every time the Doctor’s locker room door (inside the OR suite) opened.... (into corridor leading to the OR’s,) huge,billowing clouds of cigarette smoke would flow out into the corridor. And yes, doctors did smoke in patients rooms, cafeteria, lobby, emergency room as did nurses and techs.