My niece thinks her big sister who is 7 and the youngest is almost 4 well she thinks her big sister is her best friend even tho she gets the youngest in trouble I’m trying to make her realize she’s not a good friend or sister and trying to put space between them ik it sounds bad but I need help I try to keep her in here and say no she’s been bad u can’t play with her well then she whines about it and wants to be with her even more and my mom says if I’m not carful I will bring them closer and I don’t want that to happen I have them all time so what ever I can do to make her realize her bad behavior and shouldn’t follow her and to keep her distance I know this sounds bad but if u lived with the 7 year old u wouldn’t want ur littlest niece to want her or be like her she puts her in danger hurts them her mother (the 7 year old ) thinks she does no wrong and she does not punish her when she needs it she will the other two but the oldest she just talks to even when she needs more then a talking too I really need help I don’t want my littlest niece to behave like her at all