lol it's just part of the fun of being a older sibling, just teach her the words like fruck and shhh-it or mother frucker lol

"Ain't it a shame that you can't say 'Fuck'
Fuck's just a word and it's all fucked up
Like a fucked up punk with a fucked up mouth..."

They'll learn it anyways. Ive never understood why people care so much, seeing at its a normal word these days.

Honestly, “bad” words just don’t make sense anyway. Like, who decides them? Why are the chosen? What’s even the point?

Religious crazies, because they don't like the sharp, aggressive tone of the words. And then they became extra offensive when they evolved into words like "motherfucker". Plus, "cunt" is considered offensive and demeaning to women, so most people who hate swearing tend to want it to stop before kids learn it exists.