Gambling addiction causes untold trauma to both the addicted individual and, just as importantly their family members. 

The information stated below is taken directly from the The Australian Government run AIFS (Australian Institute of Family Studies) 

• Impaired family relationships, emotional problems and financial difficulties are some of the most common impacts on family members of people with gambling problems.
• There is consistent evidence of an association between gambling problems and family violence.
• The children of problem gambling parents are at a much higher risk of developing gambling problems than the children of non-problem gambling parents.