Given what we know and the information being described in the question, we can confirm that David is most likely participating in group therapy.
This is exactly as it sounds, a therapy session involving more than one person at a time. The idea behind this method of therapy is that it to allow the participants to feel identified with their troubles, and take inspiration from others as to how to deal with and better their behaviors.
Therefore, we can confirm that David is most likely participating in group therapy.
To learn more about group therapy:
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