Why do people think they have the right to judge others people’s choices?

Re

For me I don’t really care what others choose to do. If it be how they parent or what life style they live. The only thing that I do care about is if the child is healthy or if abused. I’m not going to judge people for choices they make in regard to their child. ( circumcision, ear piercing, or anything like that). So why do people do it? We are not all going to choose the same thing because we are all different.