How to Talk to Your Teen About Marijuana

Skip the lecture, start a dialogue

Teens tune out monologues fast. The conversations that land are brief, two-way, and recurring — woven into car rides and everyday moments rather than delivered as one solemn sit-down. Open with curiosity instead of conclusions: 'What do you hear about weed at school?' or 'A lot of states have legalized it — what do you make of that?' Listening first tells your teen you respect their thinking, which makes them far more willing to hear yours.

Be honest, not alarmist

Teens have phones and notice when a fact is stretched, and a single exaggeration can cost you the whole conversation. Stick to what's accurate and calm. It helps to know the real landscape: adolescent use of most substances has stayed at historically low levels in recent years 1Ref 1National Institute on Drug Abuse (NIDA), NIH; conducted by University of Michigan (Monitoring the Future) (2024).Reported use of most drugs among adolescents remained low in 2024 (Monitoring the Future survey).National Monitoring the Future data show adolescent use of most substances has held at historically low levels., so you don't need to invoke a crisis to make a thoughtful case. You can speak plainly about why the teen years specifically matter — adolescence is the developmental window when substance use problems are most likely to begin, which is a real, non-hysterical reason to be deliberate now 2Ref 2National Institute on Drug Abuse (NIDA) (2014).Principles of Adolescent Substance Use Disorder Treatment: A Research-Based Guide.Adolescence is a key developmental window for the onset of substance use disorders..

A few accurate points give the conversation substance without scare tactics: the adolescent brain is still developing, so substances introduced during these years carry a greater risk of leading to a substance use disorder than the same use begun in adulthood, and it is earlier, heavier use that is most associated with lasting problems 2Ref 2National Institute on Drug Abuse (NIDA) (2014).Principles of Adolescent Substance Use Disorder Treatment: A Research-Based Guide.Adolescence is a key developmental window for the onset of substance use disorders.. If your teen counters that marijuana is legal now, you can agree calmly and reframe it — it is legal for adults precisely because the developing teenage brain is the concern, which is the whole reason those laws set an age limit 2Ref 2National Institute on Drug Abuse (NIDA) (2014).Principles of Adolescent Substance Use Disorder Treatment: A Research-Based Guide.Adolescence is a key developmental window for the onset of substance use disorders..

Keep the door open

Make it explicit and repeat it: they can come to you about anything, including a mistake, without the relationship blowing up. Teens who believe a parent will respond with steadiness rather than fury are far more likely to come forward early, when it matters most. The aim is not to win an argument but to remain the trusted adult they turn to — which means the conversation never really 'ends,' it just continues in smaller pieces over years.

When can a pediatrician help with teen marijuana use?

Your teen's pediatrician can be a powerful ally in this conversation. The AAP recommends that pediatricians routinely talk with adolescents about substance use and screen them as part of preventive care 3Ref 3Levy SJL, Williams JF, AAP Committee on Substance Use and Prevention (2016).Substance Use Screening, Brief Intervention, and Referral to Treatment.The AAP recommends pediatricians routinely screen adolescents and deliver SBIRT as part of preventive care., so your teen already has a second trusted adult equipped for this. Clinicians use brief, validated screens — the CRAFFT was built for adolescents 4Ref 4Knight JR, Shrier LA, Bravender TD, Farrell M, Vander Bilt J, Shaffer HJ (1999).A new brief screen for adolescent substance abuse.The CRAFFT was developed and validated as a brief, developmentally appropriate screen for adolescents., and tools like the S2BI and BSTAD sort risk from a single frequency question 5Ref 5National Institute on Drug Abuse (NIDA) (2024).Screening Tools for Adolescent Substance Use (NIDAMED).NIDA recommends validated electronic screeners (S2BI and BSTAD) that triage adolescents by past-year use frequency. — which can confirm where your teen actually stands and quietly shape how you talk at home. A pediatrician can also meet your teen confidentially, deliver evidence-based brief intervention, and rule out anxiety or depression that sometimes drives use. Asking your pediatrician to reinforce the message at the next visit is a simple, high-value move.