The best and only logical way to choose a person for a position of authority is to hold a free and fair election. Every member of a community has the right to vote and deem who they see fit to hold the position.
Perhaps they could place Dana in a special care program that caters to children with his characteristics, and people that are experienced and educated in solving behavioral issues related to young children. They could also have him evaluated for mental conditions such as ADHD, and have a doctor prescribe special care for the condition such as medication or a children's program.