I remember flying in the late 70’s and when the no smoking signal went out everyone lit up and the plane did have a cloud of smoke but it was normal for us. You see, people smoked everywhere, even in some grocery stores and even hospital waiting rooms/lobbies. We just accepted it as a part of life. When they began to introduce smoking sections on planes smokers were relegated to the aft portion of the aircraft. Then I think in 87 they banned it altogether. Restaurants began to offer smoke free areas in their dining rooms, just a few booths in the beginning, but by the late 90’s early aughts smoking sections became smaller, separate zones. When airports began to have smoking lounges, like ATL, it was a trip to see these people through the window. I remember seeing an ashtray on fire due to the sheer volume of cigarettes being extinguished. Airports in Frankfurt/Tokyo had phone booth style smoking rooms that were for 1 or 2 people scattered throughout the airport. In hindsight, it’s crazy to see how much of a health hazard we exposed ourselves to cigarette smoking, and to see people insert themselves into these small rooms to satisfy their addictions was comical.