If some one have a drinking or drug abuse problem and you have children in your home, they are being affected, sometime the effects last their life time. You are right saying kids will never experience normal family relationship.
Now, in recent times drinking alcohol is a part of fashion among teenagers.Care for the addictions of teen is different from treating children or adults. It is a critical problem because the human brain does not fully develop in child-age. Drugs and alcohol addiction can completely damage not only the brain but also very important organs of young adults. Parents shoul have to motivate their child to quit alcohol and keep going.