
The alleged "mystery" of substance abuse is well-known: that, after using an illicit drug or alcohol, one feels better though these are habits which are best left unacquired.
The etiology of substance abuse is not to be found in genes but in early life experience. Substance abuse usually begins during adolescence though, rarely, it begins earlier or later.The basic ego capacities, those governing control of thinking and behavior, are created beginning in infancy and, for their successful development, require a "good enough" though not perfect parenting. When lacking, the child will have difficulty surmounting the critical adolescent tasks of separating from parents, developing a sturdy sense of who they are ("sense of self"), dating, and making sound education and career decisions. If unsuccessful at these and seeking relief from stress, some turn to alcohol or drug use for relief. Which does work though at great cost to health and emotional stability. Psychological treatment is required to heal the personality deficiencies but this, unlike the substance, requires time and why many fail substance abuse treatment.
Better and more widespread parenting education is one solution to this problem, to stop childhood based problems from developing early and provide earlier mental health treatment when needed. Another is more substance abuse education beginning in the early years. One six-year-old girl said, apropos of nothing as we played a board game, "Don't use drugs. They're bad!" Her mother later told me she had a DARE (Drug Abuse Resistance Education) class that day.