Why is it necessary for people to include the word f**k as part of their daily vocabulary?

It is so distasteful and smart alec and bratlike and arrogant and rude.....whats cool about saying the word f**k every second or third word.....sounds like somebody thats angry within themselves irrationally....its like a lot of **** coming out of their mouth.....what kind of fashion is that.....seems like the word will never go out of fashion sadly......