Growing up as a child (boy), I was always told not to cry. I believe this is harming to children no matter their gender. Is there anything wrong with giving a crying child a hug and telling them everything will be ok? My gut feeling is this happens rarely in our world.
Emotions ebb and flow. I have had tears for things like a homeless dog, an abused person, a sad movie, and also tears of joy. I have also had times where I just needed a good cry to cleanse my emotions.