i am thankful for all those difficult people in my life. they have shown me exactly who i do not want to be. Hypocrites and the like who act one way at school and behave totally different in their homes. People who believe in one thing but act another.
If both parents truly support shared parenting the effort towards making that happen would be equal. Bashing the other parent or fearing the kids might like it there too much is not an equal effort. Doing what is best for the child is an equal effort.