Speaking as a recovering addict and someone who knows people whose otherwise normal lives were ruined by starting opiates legally I can understand your concern. Anyone can get addicted. I was using low dose opiates for debilitating back pain and ended up overdosing on **** as strong as fentanyl a few months later. I would say if you have concerns for your friend you need to be often and honest with them about those concerns. Many people, as have mentioned in this thread, can take opiates and have no problems whatsoever.