for me its a yes! the main goal of human is happiness whatever human wanted to reach it towards to his/her happiness.
For example why do people want to work? because they want a better life, and if they reach better life they also reach their happiness.
So for you what is the main goal of human?
yes definitely happiness is one of the main goal of human, and I believe that our individual goal is always to create a better experience for ourselves, including our physical, emotional and spiritual and this all we need as human. Fulfillment and satisfactions of all our dreams.