This approach seems to be working for Amsterdam:
Here's my take away and understanding,
quote of last paragraph.
“Now addicts can live more peacefully and start thinking about other things than just getting high. What remains after everything else has been taken care of, is their addiction,” he said. “If you get the dope for free, your only problem is that you’re addicted to the dope. It seems like a paradox, but it's true. All that's left when everything else is taken care of is the question: do I really want to keep on using this?”
Give 'em their addiction but only where they can be controlled. Give'em nothing else, no food stamps and no other "benefits". Life is a series of choices and nothing more.