But if that family is dependent on gambling and runs the family from the money earned from gambling then parents should not participate in gambling in front of the child for the time being.
Why do you say gambling is a job to fulfill family needs? What about the risk of losing? Shouldn't gambling be for games only, not for a full-time job?
If he used gambling as a job, he would not be able to provide for the family. He must remember that he will not always be able to make a profit in gambling. He could experience many losses and lose all his money at the gambling table.
The risk of losing will also be greater if he cannot control himself. When gambling, a person can lose control of himself which causes him to lose a lot of money. He should use gambling as entertainment only and not make gambling a job.
He can look for a real job to earn money for his family. It would be safer because he wouldn't have to lose money at the gambling table. He can also avoid possible gambling addiction.