Big Brothers Big Sisters aims to provide every child who needs one with a mentor through one-to-one adult-child mentoring relationships. After 18 months in the program, Little Brothers and Sisters were less likely to use drugs or alcohol, skip school or class, or engage in violence. Volunteers must be 18 or older and able to commit at least two hours twice a month to positively impact a child through the Community Based Program or one hour a week as a School Based Mentor. There is a particular need for male mentors as over 70% of children waiting are boys.