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AI Roundtable Debate · 4 models

What do you think of the argument made by cannabis advocates that cannabis should be legalized because it is less addictive than alcohol or tobacco?

Result: Unanimous — Agree (4/4 votes)

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Model Responses

GPT-5.4

Vote: Agree

I vote A. The argument is persuasive as one factor in favor of legalization. If society already permits alcohol and tobacco despite their high addiction and health risks, it is reasonable to question why a less addictive substance should remain illegal. This is especially strong from a consistency and harm-reduction perspective. Prohibition can create black markets, uneven enforcement, and criminal penalties that may cause more harm than regulated access. That said, “less addictive” is not the same as “harmless.” Cannabis still carries risks, so the best version of this argument supports legalization with regulation, age limits, labeling, and public-health safeguards—not unrestricted use.

Gemini 3.1 Pro

Vote: Agree

Alcohol and tobacco are widely legally available and socially accepted, yet both carry significantly higher risks of physical dependence, toxicity, and fatal overdose compared to cannabis. Maintaining the prohibition of cannabis while heavily taxing and permitting these arguably more dangerous substances creates a glaring inconsistency in public health and legal policy. Cannabis, while not entirely without risk, has a well-documented lower addiction liability. Public health data consistently shows that a much smaller percentage of cannabis users develop a dependency compared to users of nicotine or alcohol. Furthermore, alcohol withdrawal can be fatal, whereas cannabis withdrawal is generally mild. Therefore, using relative harm and lower addiction potential as a basis for legalization is a logically sound and pragmatic argument. If a society deems the risks of alcohol and tobacco acceptable for adult consumption, it stands to reason that a demonstrably less addictive substance should not be criminalized.

Grok 4.20

Vote: Agree

The argument is compelling. Alcohol and tobacco are legal despite higher addictiveness, more severe health impacts, and greater societal costs like violence and disease. Data consistently shows cannabis has lower dependence rates and milder withdrawal compared to nicotine or alcohol. Relative harm provides a rational basis for policy change, enabling regulation, taxation, and reduced black-market harms rather than prohibition.

Claude Opus 4

Vote: Agree

The argument that cannabis should be legalized because it is less addictive than alcohol or tobacco has substantial scientific backing and logical merit. First, the empirical evidence supports the comparative claim. Research consistently shows that cannabis has a lower dependence liability than both alcohol and tobacco. According to widely cited studies, approximately 9% of cannabis users develop dependence, compared to roughly 15% for alcohol and 32% for tobacco. The withdrawal symptoms from cannabis are also generally milder than those from alcohol (which can be life-threatening) or tobacco. Second, the argument highlights a genuine inconsistency in drug policy. If the justification for prohibition is harm prevention, then it is logically incoherent to permit the sale of more addictive and harmful substances while criminalizing a less addictive one. This doesn't mean cannabis is harmless — it means our legal framework should be internally consistent. Third, the criminalization of cannabis carries enormous social costs — mass incarceration, racial disparities in enforcement, and the empowerment of black markets — that arguably cause more harm than regulated legal access would. Of course, the comparative addiction argument alone isn't sufficient to justify legalization; a comprehensive case should also consider other health effects, impaired driving risks, and impacts on adolescent brain development. But as one component of a broader argument, the comparison to already-legal substances is both factually sound and logically compelling. Agreeing with this argument does not mean endorsing unrestricted cannabis use — it means acknowledging that our drug policies should be evidence-based and proportionate.