"It takes a village to raise a child" – this African proverb reminds us that prevention does not happen in silence. It arises from the interplay of parents, school, peers, and community. A common misconception: "My teenager already knows what is good." In reality, many families overestimate both their knowledge of early warning signs and the effectiveness of spontaneous "Don't do it" conversations. The good news: With targeted education, wise communication, and structured prevention programs, the risk can be significantly reduced – without fear-based education, but with skills that last a lifetime.

Addiction is not a sudden event, but a process. It often begins with experimental use or compulsive behaviors that temporarily relieve stress, but in the long term, they reinforce connections in the brain. The adolescent phase is crucial: The reward systembrain network that strongly reacts to stimuli such as novelty and social recognition is already "revving at full speed," while the prefrontal cortexbrain area responsible for planning, impulse control, and foresight is still maturing. This creates a biological "timing problem": high susceptibility, lower braking power. Protective factors are known: parental presence, clear values, social support, structured leisure time, and the strengthening of executive functions (EF)mental abilities such as working memory, cognitive flexibility, impulse control, which enable wise decision-making under pressure. Equally important is SU-Literacyparental knowledge about substance use - warning signs, reliable information sources, treatment pathways: It determines whether parents recognize early signals and act quickly.

Underestimated substance use in youth is associated with physical, psychological, and social consequences – from decreased performance and mood disorders to an increased risk of problematic long-term use. Research shows that parents often overlook early warning signs or misjudge the risks of "occasional" use, which delays interventions and makes negative consequences more likely ^[1]. At the same time, the conversation culture at home shapes the trajectory: Purely rule-based admonitions ("No alcohol, period.") are associated with greater physiological stress in teenagers and a higher likelihood of use, while dialogic, scenario-based conversations provide protection ^[2][3]. Another lever lies in executive functions: Weaker EF in early adolescence predicts later frequent cannabis use – independent of parental use – marking a modifiable risk ^[4].

Three lines of research provide practical levers. Firstly: Parental education. A recent commentary emphasizes that a lack of parental SU-Literacy – that is, gaps in recognizing symptoms, reliable information sources, and treatment paths – hinders early intervention. Stigma and misinformation exacerbate the problem; targeted education can close the gap and reduce the societal burden ^[1]. Relevance: Parents are First Responders – their knowledge determines the timing and quality of help. Secondly: Family communication. Observational and longitudinal data show that scenario-based conversations ("What would you do if...?") are associated with lower physiological stress responses in teenagers and reduced likelihood of substance use, whereas pure appeals to prohibition and critical comments can have the opposite effect ^[2][3]. Mechanism: Teenagers feel like partners on equal footing, practicing decision-making pathways and internalizing skills – rather than merely rules. Thirdly: Strengthening skills. A long-term observation shows that weaker EF at ages 11–14 predicts later weekly or daily cannabis use – even when parental alcohol and cannabis use is taken into account. EF is therefore a preventive target marker, not just a possible consequence of use ^[4]. Additionally, a quasi-experimental parent training program that imparts life and decision-making skills within the family demonstrates sustainable improvements in self-control, problem-solving, and decision-making abilities in teenagers – skills that buffer peer pressure ^[5].

- Focus on EF checks and micro-trainings at home: Pay attention to signs of weaker executive functions (forgetfulness, impulsivity, procrastination in decision-making). Incorporate 10-minute rituals: joint weekly planning, "If-then" plans, short working memory games. Goal: Train the prefrontal "brakes" – a demonstrable protective factor against later frequent cannabis use ^[4].
- Establish scenario-based conversations instead of monologues: Go through a realistic "What-if" scenario once a week (party, peer pressure, social media offers). Praise good strategies, question options, keep rules clear but dialogical. This approach reduces stress and is associated with lower substance use ^[2][3].
- Curate leisure time thoughtfully: Promote activities that enhance meaning, team spirit, and self-efficacy. Sports can foster resilience – especially in the right social environment – but are not automatically protective; choose settings with a good coaching culture and clear values. Supplement hobbies, club life, and responsibility roles, as these can strengthen resilience and prosocial behavior depending on the context ^[6][7].
- Anchor school-based prevention in the annual plan: Actively enroll your child in evidence-based school programs and inquire about curricula that combine social competence and resistance to social influence. Such programs show protective effects against tobacco, alcohol, and drugs; family-based programs complement with small, but stable effects ^[8].
- Start a 12-week family program for life skills: Follow protocols that empower parents to teach self-control, problem-solving, and decision-making at home. Plan weekly skills sessions (role-playing, decision trees, "saying-no" variations). Studies show sustained improvements in key subscales of practical life skills ^[5].
- Systematically build your SU-Literacy: Create a resource list of reliable information and support options (school, general practitioner/children's doctor, local addiction counseling). Recognize warning signs early and act low-threshold – education reduces delays due to stigma and uncertainty ^[1].

In the coming years, prevention is likely to become more personalized – with EF screenings guiding individual training plans, and school programs that adaptively promote social competencies ^[4][8]. At the same time, parent-focused literacy tools and home life-skills protocols will be digitally supported to further improve knowledge, timing, and quality of intervention ^[1][5].