Smoking and excessive drinking during adolescence have both immediate and long-term health consequences. Smoking during adolescence has immediate adverse health consequences, including addiction to nicotine, reduced lung function and impaired lung growth, and asthma (Inchley et al., 2016[12]). It is also associated with an increased likelihood of experimenting with other drugs, as well as engaging in other risky behaviours (O’Cathail et al., 2011[13]). Early onset of drinking and early onset of excessive drinking are associated with hazardous drinking in young adulthood (Enstad et al., 2019[14]). Early and frequent drinking and drunkenness are associated with detrimental psychological, social and physical effects, such as dropping out of high school without graduating (Chatterji and DeSimone, 2005[15]).