I don't agree with you that it's only in North America where profanities
are so widespread.
From what I know of the U.S through American T.V shows,
etc. it seems profanities are used in a more routine manner in the
than in other countries.
are a part of the language like any other. They can be most effective
Although they are useful when used to indicate emphasis, these words
reflect on the (lack of) refinity of their user.