Medical Cannabis Laws Linked to More Teen Use, Perceived Penalties Linked to Less | Research

The takeaway

State medical cannabis policies were associated with higher adolescent cannabis use, while perception of serious legal penalties was protective, using 2023 national survey data.

Youth prevention program designers, cannabis policy researchers, school counselors

Medical cannabis laws weaken the protective effect of social bonds on teen cannabis use

What the researchers found

Medical cannabis legalization was positively associated with past-year adolescent cannabis use. Perception of serious criminal justice penalties for possession was negatively associated with use. State policy status moderated the protective effects of social bonds (attachment and involvement), weakening their influence in legalized states.

Why it matters

Understanding what protects teens from cannabis use in the context of changing laws helps design more effective prevention strategies, especially as more states liberalize cannabis policies.

The numbers in context

2023 NSDUH data. Medical cannabis policies positively associated with past-year use. Perceived serious penalties negatively associated. Attachment and involvement effects moderated by state policy status.

How the study worked

Cross-sectional analysis of 2023 National Survey on Drug Use and Health (NSDUH) data examining state-level cannabis policy, perceived penalties, and social bonds as predictors of adolescent cannabis use.

What this study cannot tell us

Cross-sectional design cannot establish causation. State-level policies may correlate with other unmeasured factors. Perceived penalties are subjective and may not reflect actual law. Social desirability bias in reporting.

How to read the evidence

Large nationally representative dataset with multilevel analysis, but cross-sectional design limits causal inference.

When this study was published

2025 study using the most recent (2023) NSDUH data.

The bigger picture

Legalization may undermine some traditional protective factors against adolescent use. If social bonds become less protective in legal states, new prevention approaches may be needed to fill the gap.

Questions still open

Can enhanced education replace the deterrent effect of perceived penalties? Which social bonds remain protective in legal states? How can prevention programs adapt to legalization contexts?

Common questions

Do cannabis laws affect teen use?

This study found medical cannabis legalization was associated with higher teen use, while perception of serious legal penalties was associated with lower use. This suggests both policy and perceived consequences matter.

What protects teens from cannabis use?

Social bonds like school attachment and involvement in activities were protective, but their effect was weaker in states with medical cannabis laws, suggesting legalization may undermine some traditional protective factors.

Read the original research

The Role of Cannabis Policies and Perceptions of Penalties on the Association Between Adolescent Social Bonds and Cannabis Use.

Substance use & misuse, 60(12), 1913-1922

View on PubMed ↗Publisher’s paper ↗

Citation

Moscrop-Blake, Kelsi; Leal, Wanda E. (2025). The Role of Cannabis Policies and Perceptions of Penalties on the Association Between Adolescent Social Bonds and Cannabis Use.. Substance use & misuse, 60(12), 1913-1922. https://doi.org/10.1080/10826084.2025.2522153