Whenever these rules authorize notices to be given to a “child”, the word shall be construed to refer to a child 12 years of age or more or as defined by statute. If a child is less than 12 years old, the child’s legal parent or parents, custodian or guardian shall receive the notices authorized by these rules. If the interests of the child and those of the parents appear to conflict, or if neither parent is available, the court shall appoint a guardian ad litem, or counsel, or both, to protect the interests of the child. Such a guardian or counsel shall receive the notices authorized by these rules.