Question: If happiness is a state of mind, then why cannot everybody choose to be happy minded?
Answer: We could say that happiness is a choice, although not a “direct choice”.
Happiness is a result, a consequence, what we can choose is the process, state that leads to happiness.
True happiness is a positive, joyful emotional impression that comes from real, mutually supportive and mutually fulfilling Human interconnections in a closed, purposeful environment.
In order to build such connections we have to choose to primarily give joy, support, confidence and elevated mood to others instead of ourselves. And this is against our inherently self-serving, self-protective, egoistic nature.
This is why usually we choose isolation, rejection towards others instead of “choosing happiness”.
In order to make the “right choice” first we have to choose the right, purposeful, positively motivated environment that is ready to work towards true happiness.
Entering The Force-Field 