I must admit that I blame Hollywood for it.
You see, because dialogue in so many movies is laced with profanity, moviegoers in other countries who watch the subtitled versions, get the wrong impression that profanity is an everyday occurrence in American speech.
There is also something going on with the left about young females and female celebrities being encouraged to talk like drunken longshoremen, even media writers and columnists are using the words and they are seen even in titles.