There is a TNG novel that features the Breen. I believe the suits are wired into their nervous systems and while they have diversity among them, I think 4 or 5 species in their confederation, they stay in suit as a way to unify without embracing diversity.

They're sort of like anti IDIC, so their suits that they are dependent on keep them homogenous enough to get along.

From experience I can guarantee spending your time feeding hoards of cats doesn't improve social anxiety in any way.