(a) The child must be personally present at the adjudication hearing. The truancy court may not proceed with the adjudication hearing in the absence of the child.
(b) A parent or guardian of a child and any court-appointed guardian ad litem of a child is required to attend the adjudication hearing.
(c) Subsection (b) does not apply to:
(1) a person for whom, for good cause shown, the court excuses attendance;
(2) a person who is not a resident of this state; or
(3) a parent of a child for whom a managing conservator has been appointed and the parent is not a conservator of the child.