are there any things from 1980s Japan that aren't acceptable now in modern day Japan?

recently i watched a show from netflix called "不適切にもほどがある!"/ Extremely Inapropriate! & in the first episode, the main protagonist (which is the Dad & PE teacher) started secondhand smoking inside the bus which gave me question marks in my head & as someone who really liked knowing stuff, nostalgia & aesthetics (music, fashion, etc) from the late Shōwa era, i was a bit shocked that you can smoke pretty much anywhere back then.