I don't get how someone can say someone is a bad mom when she don't have kids. My dumb sister comes…

I don't get how someone can say someone is a bad mom when she don't have kids. My dumb sister comes trying to boss me around n tell me shit but yet the bitch is hardly around. She shouldn't worry about me n my kids she should worry about her self not living off of us. 28 years old n she's living with her 25 year old sister.