Some groups are organised around a shared identity rather than a shared problem. The reasoning is the same in each case: certain material can’t be reached while you’re also explaining yourself.
What the shared ground buys
The explaining stops. The largest and least glamorous benefit. An hour isn’t long, and a third of it going to context is a real loss.
Nobody is the representative. Being the only person of your background in a mixed group frequently means becoming, involuntarily, the one who speaks for it. That’s exhausting and it prevents you using the group for yourself.
Specific material becomes sayable. Things that would need defending elsewhere —an obligation a Western frame would call enmeshment, an experience of racism that gets doubted, a fear that reads as paranoia to people who haven’t lived near it.
Norms that fit. Men’s groups in particular frequently work because the norms about disclosure are calibrated differently, and a man who wouldn’t speak in a mixed group will speak in one.
The kinds, and what each is usually for
Men’s groups. Frequently the only setting where men talk about anything, and the help-seeking numbers make the case. Usually working on isolation, anger, fathering, and the specific difficulty of having no vocabulary and no model for any of it.
Women’s groups. Frequently around the labour of being the reliable one, anger that has nowhere acceptable to go, body and ageing, and the specific exhaustion of carrying everyone else’s emotional weather.
LGBTQ+ groups. Where the material is family, coming out at any age, or the accumulated cost of concealment, a room where none of that needs establishing does something a mixed group can’t.
Culturally specific and language-specific groups. Where the difficulty involves a family structure or a history that a general group would need educating about.
The trade-off nobody mentions
Shared identity narrows the pool. A group for one identity working on one issue in one language needs six to ten people who all fit, and in most cities that doesn’t exist.
Which is the strongest single argument for online groups: across a whole state, a specific group is straightforward. The good identity-based groups are disproportionately remote for exactly this reason.
The second trade-off: a shared identity isn’t a shared personality. People sometimes expect an identity group to be automatically comfortable and find it isn’t — the disagreements are simply about different things.
When mixed is better
Worth saying, because the assumption runs the other way.
If the work is about how you’re with people generally, a mixed process group supplies a wider range of people to be yourself with, which is the point. An identity group can occasionally become a place where everyone agrees, and agreement is comfortable and doesn’t change much.
A reasonable rule: identity-specific where the identity is the material, mixed where the pattern is.