Kids use drugs for many of the same reasons adults do. Most kids first try alcohol or other drugs simply for the experience. They’ve heard about the substance and are curious about how it will affect their thinking and behaviour. As risk-takers with limited life experience, young people aren’t as likely to consider the potentially harmful consequences of their actions (especially long-term consequences). Many believe they can safely try a new substance a few times without getting either hurt or hooked.

Some kids start and continue using drugs because they have no reason not to. That is, there’s no sport, hobby, or long-term goal that is compromised by their substance use. Young people with activities or "big dreams" that require them to get good grades, get up early on weekends, or be both physically and mentally healthy are less likely to get in trouble with drugs. Kids who are bored and don’t know how to get “un-bored” are most likely to overuse substances.

Sometimes even highly-involved kids with very clear goals use tobacco, alcohol, and other drugs. Until their substance use interferes with their performance, they may not see a reason to hold back. Without appropriate guidance and supervision, they may feel both invincible and justified in freely experimenting with whichever substances or amounts they wish.

If a young person has personal problems or feels inadequate, they will sometimes turn to alcohol or other drugs for temporary relief or escape. Teens with mental or physical health concerns that make them feel socially isolated, or who have trouble relaxing and fitting in with people their age, might use substances to mask their feelings or to lose their inhibitions. Others simply enjoy the buzz they get from getting drunk or high.

Kids who grow up in environments where smoking, drinking, or using illicit drugs is acceptable are more likely to use substances themselves in both the short and long term.

Experimentation is a normal part of growing up. If you keep the lines of communication open between you and your child, you’ll be better able to gauge whether your child has a substance use problem.