There are many wonderful, authentic Mid-Century details in this strip. But I don’t understand Red’s cuffed jeans- not a part of the 1960’s I remember- more 1950’s.
Smoking outside is a relatively new concept. Second-hand smoke wasn’t recognized as a serious health hazard to non-smokers for a very long time, and even when it was, it took a couple of decades for legislation to beat the tobacco industry’s lobbying.
" ..in the 1960s and even into the 1970s and ’80s smoking was permitted nearly everywhere: smokers could light up at work, in hospitals, in school buildings, in bars, in restaurants, and even on buses, trains and planes."
It may have been a regional thing. It definitely wasn’t popular in the western half of the US where I lived.