Appearance in court

The parent, guardian, or custodian of a juvenile under the jurisdiction of the juvenile court shall attend the hearings of which the parent, guardian, or custodian receives notice. The court may excuse the appearance of either or both parents or the guardian or custodian at a particular hearing or all hearings. Unless so excused, the willful failure of a parent, guardian, or custodian to attend a hearing of which the parent, guardian, or custodian has notice shall be grounds for contempt.