Group therapy is often presented to patients as the affordable option. The format actually operates through processes individual therapy cannot supply, which is a different argument for it.
The group is a live social sample
Patterns in how a person relates to others appear in the room rather than being reported afterward, which removes reliance on a single account of what happened.
A therapist can observe interruption, withdrawal, deference or conflict as it occurs, and members can describe how it lands on them.
That feedback comes from peers rather than from a paid professional, which many patients find harder to dismiss.
Observing others changes expectations
Members watch other people describe difficulties and attempt changes, which supplies evidence that change is possible from someone in a comparable position.
Hearing similar experiences also reduces the sense of being uniquely defective, which is a recurring element in what patients report as helpful.
Neither process has an equivalent in individual therapy, where the only other person present has a fundamentally different role.
Composition determines whether it works
Groups are assembled deliberately, with attention to diagnosis, severity, interpersonal style and stage of readiness rather than filling seats.
Poor composition produces predictable failures, including one member dominating, a member too unwell for the format, or a group too homogeneous to generate useful friction.
Screening interviews exist for this reason, and a program that skips them is making a decision that affects everyone in the room.
Structure varies more than the label suggests
Some groups follow a curriculum with skills taught in sequence, while others are process groups where the material is whatever arises between members.
Closed groups run with a fixed membership for a set period, while open groups admit new members continuously, which changes safety and depth substantially.
These formats are not interchangeable, and matching a person to the right one is part of what screening is for.
Confidentiality is weaker by design
Clinicians are bound by law and licensure, while other members are bound only by agreement, and that difference cannot be eliminated.
Programs address it through explicit agreements and discussion, but the residual risk is real and is a legitimate reason some people decline the format.
Whether group, individual or both is appropriate is a clinical judgment that depends on the person, and it belongs with a licensed clinician who has assessed them.