The main problem I see with a license-based system is the immense amount of variables. First, is the issue of determining eligibility. It's one thing to require an educational component (most people would be capable of passing such an assessment), however determining individual responsibility is where matters get tricky. .
I could see a demerit system akin to driving being applicable.
Commit any drug-related act, loose some or all of your drugs licence points.
Loose your licence, no more drugs for you (there would still be a black market, but then its mostly people who are negligent, criminals, etc. the people who are going to be committing crimes (well, lets say societal bad acts) anyway.
The otherwise law abiding citizen doesn't need to worry about dealing with the black market (which is always going to exist in some form IMO)
[just kinda thinking the idea through out loud, but lets say you're caught drink driving, you'd loose your alcohol and driving license, since you're showing you can't be responsible with the substance, and a car.
If you were giving alcohol to minors, you're showing you can't be responsible, loose the license.
It won't be perfect, but if its reasonable, most people will follow it.
Many people don't follow MJ prohibition simply because it isn't reasonable, yet most of those people still say kids shouldn't be toking up, because its reasonable to restrict it from kids]
Concerning responsibility, the two main considerations would be individual and societal harm potential.
When an individual can no longer control his drug usage, he becomes society's problem. Society's main problem with drug users is the medical bills; much of which are caused by either treating addiction or overdose. Overdose can be prevented with the educational component (especially with the quality standards of legal drugs), but what about addiction?.
What about it?
There are many addicts out there now to legal drugs (nicotine, alcohol, caffeine, prescription meds)
Better education about the effects of drugs on your body, including the positives and negatives, could help, but some people are just going to end up addicted to something...
Better it be a clean, legal substance that they can get with relative ease, than a potentially adulterated illegal substance that has to be sought out from a criminal IMO.
I would think that if these substances are taxed akin to other drugs (I'm thinking alcohol and tobacco here) then at least some of that revenue could be used to offset increased healthcare costs. (I haven't done any kind of economic analysis on that though
)
Also, I recall reading an article recently that stated that since Portugal decriminalised everything, their number of addicts has halved
I've read that some people are predisposed to addiction, but is there a way to screen for this? On a related note, you would also have to screen for mental illness (not a good idea to give a schizophrenic acid). These two are just a hint of what would be required for determining eligibility and already there are clear inequalities. When demand exists (those denied eligibility) for something illegal, opportunity for a black market exists as well. .
If a person was pre-disposed to addiction, IMO it's still up to them to decide if they want to abstain, or try to use a substance responsibly.
We don't seem to care currently if people are addicted to cigarettes, and alcohol to a lesser extent,
Basically, I'd say its up to the individual to be responsible with their own body, and if they go overboard, we as society try to get them back on track (through rehab etc).
I don't know about the mental illness aspect, I'd have to look into it further, but for the most part, my position is;
So long as a person is capable of being responsible for themselves, it should be up to them what they consume.
We don't stop someone from eating salty food when they are pre-disposed to high blood pressure, we just advise against it and let them live their life...
And what about the production aspect? To ensure acceptable quality standards and prevent drug profits, drugs would have to be produced and/or regulated by the federal government.
I have nothing against profits on drug sales, IMO it's no different to any other consumable product.
Would you say alcohol is regulated by the government?
If so, then a similar level of regulation on other drugs would be adequate I would think.
I've never been perturbed that my Smirnoff isn't "Uncle Sam's Ruskie Juice"
Maybe I'm not understanding your point here fully?