Children don't owe their parents. It is the parents that owe their children.
I think that is completely dependant on how you were raised and the relationship you had/have with your parents. I feel forever in debt to my parents all 3 of them. However I know I was blessed my mother walks on water in my eyes, she is one the sweets human beings ever. I love her to death and am so grateful for everything she has done for me. I know there is no way to repay her truly well maybe grandkids. LOL I bumped heads with my step father tons as a teenager but he taught me so much about hard work and work ethic. My father was no saint but he did more then give me life he did the best that he could given the way he was raised.