I always believed that our characters and attitude was first mold inside our houses, what we are right now has something to do with our childhood, past and experiences. I know it's hard to admit especially if our children is taking the wrong directions which we never wanted for them. And I believe no parents would want their children be a failure, no one. Yes, the society, environment and the people outside their children is interacting has also its share, but it will still point to the family's upbringing.
There are families that have accepted their shortcomings with their kids, and make up to support all the way when they learned that their child needs them. They don't hide the problem, they give solution to it, even if it means bringing their beloved teens to Drug Rehabilitation Centers for treatment.