Before Islam, the children were sacrified before the idol. It was the not only the custom Arabia but also in India and other many Countries. It was a bad custom.But Islam gives many rights to the children.The first right is to be a alive.

It is the right of the children that their parents bring up them.
Therefore it is a foremost duty of the parents that they should present a model of an ideal charecter before their children. Another duty of parents is to educate an trian them proprely.
It is the duty of the parents that to make their children honest and sensible.
Basic facilities must be provided to the children.
Parents should give them permission to paricipate in extra activities.
It may make them physically strong.

It also make them healty and strong. They have right to make a decision. Parents should respect their decision. Love also is the right of the children.
Parents should show love and kindness to their children.
They should show equality between their children.