¶ 244.2a of The Book of Discipline 2004 states (in part) concerning the makeup of a Pastor-Parish Relations Committee:
One of the members shall be a young adult and one member may be a youth.
My UMC polity professor mentioned this requirement today and said that in a previous age, having a youth on PPRC was mandatory per the BoD. This provision is, however, almost universally ignored. He said that no teenager that he's ever met would be able to contribute to the more painful PPRC meetings or fulfill the weighty responsibilities of this committee. The impact of seeing the sausage of the church being made could do great damage to a teenager's faith.
So he doesn't have one on his own PPRC, nor does any church that I've ever attended.
Should churches have teenagers serving on their Pastor-Parish Relations Committees?