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).
The use of token systems with young children is being questioned by recent research, with an exception for stuttering treatment.  These systems aim to gradually decrease their dependence on tokens and enable individuals to engage with natural reinforcement from the environment (rewards they receive in everyday life) for exhibiting desired behaviors.