We are social mammals. Mating, and food & shelter security (employment), often require us to signal to those within a group that we are “safe”, and that we are

We are social mammals. Mating, and food & shelter security (employment), often require us to signal to those within a group that we are “safe”, and that we are one of “them”. If you meant that people use etiquette to make others feel excluded and push them away, sure, that’s wrong. But I always counter that that’s just bad etiquette.