Avniel, I think your case is the exception rather than the rule. For you, it was cultural, and accepted. But in the vast majority of cases, especially for young people, any substance use (alcohol, tobacco, weed) leaves a person many times more likely to seek out other drugs down the road. Perhaps it's part of the American selfish, instant-gratification culture, or just the general moral and social decline of our country overall.
I watched my brother start with cigarettes and alcohol, he progressed to pot, and then onto every hard drug you can name; LSD, cocaine, ecstasy. He lost decades of his life to drug addiction, crime, and prison, and today in his late 30's, he is still mentally a paranaoid, selfish child who can hardly function in society, even though he's been clean for the majority of the past 10 years.
The "gateway drug theory" describes the phenomenon in which an introduction to drug-using behavior through the use of tobacco, alcohol, or marijuana is related to subsequent use of other illicit drugs. The theory suggests that, all other things being equal, an adolescent who uses any one drug is more likely to use another drug. In practice, early introduction to substance use for adolescents is often through tobacco and/or alcohol. These two drugs are considered the first "gate" for most adolescents. Under this hypothesis, tobacco, alcohol, and marijuana are all considered "gateway drugs," preceding the use of one another and of illicit drugs.
The National Center on Addiction and Substance Abuse (CASA) provides the following illustrations:
- Among 12-to 17-year-olds with no other problem behaviors, those who drank alcohol and smoked cigarettes at least once in the past month are 30 times likelier to smoke marijuana than those who didn't. These correlations are more pronounced for girls than boys: for girls, 36 times likelier; for boys, 27 times likelier.
- Among 12-to 17-year-olds with no other problem behaviors, those who used all three gateway drugs (cigarettes, alcohol, marijuana) in the past month are almost 17 times likelier to use another drug like cocaine, heroin, or LSD. These correlations are stronger for boys than girls: for boys, 29 times likelier; for girls, 11 times likelier.