Is it wrong for kids to swear?

It always surprises me when I realize that I really am a lot more of a prude than I think I am. There's something both hilarious and unsettling about young children using swear words and this video made me cringe for exactly that reason. Though very funny, it begs the question of what type of influence these kids' parents are having on them.

Alternately am I putting too much importance on words? We're constantly trying to reclaim words which have been deemed offensive as they encompass negative emotion towards women, homosexuals, or a specific race or belief system. Am I falling into the same trap by caring whether these girls swear or not?

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