Where does she get her money from? Her life is an absolute tragedy. People mock her, but heck, is she a survivor! She's been through so much that it's amazing she's able to function at all, frankly it's amazing she's not dead. I have a great deal of empathy for addicts. They get even less understanding than those with severe mental illness. There are too few facilities helping people with addictions and the sooner you get help the better your chance of recovery. But every single day is hard when you're in recovery, which ultimately you'll be in for life. I can totally understand that if being off drink/drugs/gambling etc is horrendous for some people for ever, why put yourself through rehab?
Obviously I'm not advocating this, but until there is more help available and society learns to have at least a degree of empathy, addict will continue to destroy lives, of the addict, their family and friends.