Nice and Wise

Is it not the duty of Children to keep Parents happy in the 1st place, as the best gratitude?

Of course I was not the obedient son to my Parents, yet I did not hurt their mind and heart, in my life time. Because I had so much respect towards them, for which I feel so happy now. They were the living Gods to me. Thanks God, for given me such wonderful Parents.
Cinna.