Can you not support the gambler's father?

No, because that's your father. You have an obligation to support him. When the mother fails to perform her maintenance obligations, minor children or children who cannot live independently have the right to ask their parents to pay maintenance. Parents who are unable to work or have difficulties in living have the right to ask their children to pay alimony when they fail to fulfill their alimony obligations. From this provision, we can know that children have the right to be raised from their parents, and parents also have the right to be raised from their children. Moreover, such rights and obligations are not reciprocal, and the obligation of raising children will not be exempted because parents have not fulfilled their obligation of raising and educating.

People's Republic of China (PRC) Civil Code

Article 26 Parents have the obligation to support, educate and protect their minor children. Adult children have the obligation to support, help and protect their parents.

Article 37 Parents, children, spouses, etc. Those who have the legal obligation to support, support and support the ward shall continue to perform their obligations after being disqualified by the people's court.

Article 1067 If parents fail to perform their maintenance obligations, minor children or adult children who cannot live independently shall have the right to ask their parents to pay alimony. Parents who fail to perform their maintenance obligations, lack the ability to work or have difficulties in living have the right to claim alimony from their adult children.