There are a lot of ways for a person to be a worthless POS. And no one owes their self to others. Most of us, the overwhelming majority, despite our flaws, are overall good people who take care of our own **** and help other people out now and then. That is true even though we all face countless choices that would lead us away from that. Unfortunately some of us go the wrong way. It could be in any number of ways. Drugs is but one of an unlimited array of bad choices we could make.
And let's be absolutely clear. Any one of us can make the choice to use drugs. The prohibition of such is a bad joke. More people are harmed by drug prohibition than people are protected. In fact, if your family has suffered from drug addiction it is very likely that the prohibition and criminalization of drugs ADDED to your suffering, hardship and tragedy.