Yes we do. If we have enough money to put millions of people in jail and buy a billion billion worth of weapons we've got the money.

But to be practical, why not teach them to help each other in a mini economy? Have some of them learn to bake bread, have others raise chickens, and others mend fences. Try to make it as self-sustaining as possible. Anything to keep them from getting bored and then wanting their fix.

Those who don't participate (according to their abilities) don't get some perk or other, but instead get assigned to one of their buddies for safe keeping until they are able to care for themselves.