There is a movie called This Film Not Yet Rated that discussed the movie rating system in America and how truly flawed it is.
The reason I bring it up is that it is actually a good example of how flow blockages are often culturally dependent.
You see, the film’s purpose is to show how the ratings system is indeed flawed. The MPAA (the ratings people) sells itself as presenting a fair and unbiased way to rate movies based on their content. But the reality is much different and is nearly 100% susceptible to peer pressure, perceived cultural mores, and similar flow blockages.
For example, the ratings board voted to give one movie a PG-13 rating until a “ranking member” with ties to the industry didn’t like the film and insisted it get an R. Likewise, the ratings board finds violence to be wholly acceptable at virtually any rating level, but once drugs (or perceived drugs) or sexuality is introduced, suddenly the movie is at least a PG-13, if not NC-17.
Ironically, if smoking is featured in a movie it is totally disregarded as far as ratings even though nicotine is the most addictive substance you can put in your body. So you get perverse scenarios where a film is given a G even though virtually every character is smoking yet if those same characters smoked pot or were sexual the movie would get an PG-13 or worse.
It’s just more proof that what people think of as morality or full of sin are simply things that are based on whatever the current culture states. Want more proof? In Europe movies are essentially rated the exact opposite. Violence is cause for a higher rating, whereas sexuality is not.