I think the 80s were an inflection point. It was pretty rare by 90s/200s. In 1986 apparently only 26% of (high?) schools still had smoking sections and 9% allow

I think the 80s were an inflection point. It was pretty rare by 90s/200s. In 1986 apparently only 26% of (high?) schools still had smoking sections and 9% allowed smoking indoors[1]. I'd guess that the breakdown will vary drastically state by state but I haven't bothered to dig deeper :) [1]: https://www.nytimes.com/1986/11/30/nyregion/school-smoking-ban-debated.html https://www.nytimes.com/1986/11/30/nyregion/school-smoking-b...