Final answer:
Self-disclosure in group counseling is used to facilitate group growth by relating to issues and fostering a supportive environment.
Step-by-step explanation:
The therapeutic reasoning for self-disclosure in group counseling is to facilitate the growth of the group by relating to client or group issues. Self-disclosure is considered an important mechanism in group therapy as it can help build trust, create a safe environment, and serve as a role model for clients to express their own struggles and learn healthy ways of sharing. This process is meant to enhance solidarity and empathy within the group, challenging members to re-examine their beliefs and providing emotional support. This ultimately aids in the healing process of the individuals within the group as they witness the counselor navigate similar issues and demonstrate vulnerability.