I am a conservative packer. I don't carry evening gowns for a Disney cruise. (I generally carry one-two black dresses for Palo and formal night). I generally don't care what anyone else around me is doing- not my cruise nor my problem. For our Merry Time cruise several families came to the MDR in matching PJ's. Though wouldn't do it (group of traveling adults), it's cute enough. However... showing up for dinner wearing a white spa, room robe is inappropriate. Seriously. That is all.