A*n't is a Dangerous Word

I detest the word "a*n't." I refuse to even type it out.  Yet, my daughter's father and his family have no aversion to this word and use it often.  So every time my daughter comes home from her dad's house (every other weekend) I have to reprogram her vocabulary and grammar skills.  Which is fucking irritating and now it has become a game to her.  She uses it by accident once and I remind her