All skaters must know the rules! Coaches and referees will teach the rules as they become pertinent during practice BUT skaters must become familiar with the rules and read the handbook from time to time to stay sharp.
Junior skaters play by current WFTDA Rules set, just like the adult skaters. The only difference is between non-hitting and hitting skaters. There is an addendum to the rules for non-hitting play found on the JRDA site.