People want to compare their own feelings and reactions with those of others in the same situation; especially in new or fearful situations. This is due to the need to reassure ourselves that we are normal and therefore accepted by others. Our strong need to belong to someone or a group indicates that we are all social beings. No human being is wired alone. Human beings seek security, fulfillment, and happiness through close relationships. Studies have shown that relationships play a large part in deciding one's happiness.
In the world of rampant use of social media, millennials seek information and knowledge from those who are in the know, for reassurance. This clearly shows our common need to exchange information, knowledge, and network for its own sake.