it's never about the word itself, but what impact the word has...to play devil's advocate, curse words have very strong emphases and are only for certain uses...since curse words are usually said out of frustration, theyre usually considered not nice to say...so a parent probably wouldnt want to expose their kids to words like shit, fuck, cunt, bitch, etc. since, fundementally, theyre not really nice to say... obviously as we get older we become desensitized to it all, and using curse words becomes more of a selective process depending on the situation, but of course we wouldnt understand that if we're younger...