Wait til they're old enough to march but not old enough to drive. Marching season starts in July with 2-a-days. Then when school finally starts they can't take the bus 'cause of morning sectionals, and oh yes, there will be after school practice too. Don't forget also about all of the Fridays you give up attending or working concessions at the football games, then going to parades or marching competitions on Sat.
But, I have to say,
MUSTANG NIGHTRIDERS MARCHING BAND ROCKS!!!