One possible argument is that such a group is homosocial if composed of people of a single sex, and bisocial if composed of people of both sexes, since in the latter case each member will be interacting with people of both sexes.
A potential argument suggests that a group can be categorized as homosocial if it consists solely of people of the same gender, while a group comprising members of both genders is termed bisocial because each member would interact with individuals of both genders.