However, recent research questions the use of token systems with very young children. The exception to the last would be the treatment of stuttering. The goal of such systems is to gradually thin out and to help the person begin to access the natural community of reinforcement (the reinforcement typically received in the world for performing the behavior).
Recent studies challenge the use of token systems with very young children, except for stuttering treatment.  The goal of these systems is to gradually decrease their dependence on tokens and enable individuals to engage with natural reinforcement from the environment (the rewards they receive in everyday life for exhibiting desired behaviors).