Even children who are still too young to read are able to understand what they need to do to qualify for higher ranks every 3 -- 6 months .
Children 's training manual is designed to children 's their parents children help them .
Even children who are still too young to read are able to understand what they need to do to qualify for higher ranks every 3 -- 6 months , because their training manual is designed to allow their parents to help them .