A. Except as provided in Paragraph B of this Article, when a delinquency petition involves a child whose parent is a resident, the court shall issue a summons commanding that the child, his parents, and such other persons as the court deems proper appear before the court at a designated time and place.B. In its discretion the court may decline to issue a summons to appear at any hearing for the parents of any child who is eighteen years of age or older.