The world is calling for the abandonment of "crying shame", because crying has many benefits. Tears can expel human waste, keep the eyeballs moist, wash away eye dust, and the lysozyme contained in them can also sterilize the eyes.
When we cry, we let go of our defenses and expose our vulnerability, which means you trust the other person. Crying can also play a role in promoting reconciliation, because crying digs deep feelings of helplessness out of the surface anger.