Even folks who aren't fans of the show know the 1966 Star Trek series was ahead of its time in ways that are still surprising. The show was ahead of its time by decades when it came to the diversity of its cast. Through science fiction allegory, the storytellers tackled the issues of the day. Yet, there was one subtle way Star Trek: The Original Series was an outlier on television: no one used tobacco.
Source：https://www.cbr.com/star-trek-smoking-banned/
