Maybe, but realistically, you're talking about kids who are truly addicted. From what I know about the psychology of addiction, there is nothing you can offer an addict as an incentive to quit until he's ready to quit. What evidence do you have that this would help them break their addiction?
I'm not an expert on addiction. But I know there are all levels of addiction - and that different drugs have different levels of addiction - and that there are different types of addiction (psychological, physcial, emotional, etc.). C'mon. A kid who wants to give up drugs to get his/her drivers license will find a way to do so. Some will do it by themselves. Others will seek help from family and friends, or from professionals.