I am a former felony probation/parole officer from Florida. I had quite a few decent, hard-working men and women who were on my caseload for fraud (getting fake prescriptions for pain killers, etc). These people all had REAL LIFE NORMAL injuries (such as back problems) that led them to LEGALLY take a very additictive drug. Once hooked, their lives spiraled downward and they were soon committing crimes to get the medicine that they were addicted to...
Bad things can and do happen to good people. Often it's the lack of good, close medical attention (either due to the fault of the patient and/or the fault of the doctor). Sadly in today's world, families aren't as close and don't watch over their loved ones and doctors don't give individual care and follow-up care.
When it comes to children, it DOESN'T MATTER HOW these people got addicted. The children MUST be protected from their drug-indicted parents. Family members should step in immediately. If they won't do it, than the State should!