Emotions are part of human life, without it we would be misfits not knowing the difference between joy and sorrow, anger and peace, laughing and crying. As we grow up in life, depending on our surroundings and our outlook we try to master our emotions so that there are subdued be it anger or joy. In social gatherings, women and children are more emotionally expressive when compared to men. Men express their emotions often when they are in the company of their old schoolmate or close circle of friends.
Extreme ends of emotional expressions can be harmful causing rifts at home, workplace and among friends. Yes we need emotions, they are certainly not a sign of weakness or vulnerability but a sign of being human.