If you have a friend or family member struggling to save one of their children from the ravages of addiction, it is not useful for you to second-guess or judge how they parented. They didn't create addiction the biology of the brain did that. It is only useful to ask that unfortunate parent what you can do to best support them. The reality is that addiction is such a pervasive problem, that your child could be the next one to be affected and facing the judgment of others will only make you feel worse.