No one wants to be a drug addict or alcoholic.
Most people start drinking or using drugs recreationally. They want to loosen up and enjoy themselves at parties or they're with friends they admire or "look up to" who are using it.
They may have a desire to alter their awareness or consciousness. Even little kids enjoy having someone spin them around until they become dizzy. People get high, buzzed, or tipsy to have fun.
Not everyone who takes a drink or uses drugs develops a habit.
An addict becomes mentally consumed with wanting that drink or drug all day long. They will blow off going to work, spending time with family, and if they deem it necessary they will break the law to get what they "need". When one's priorities change they're in trouble.
Withdrawal symptoms can occur from both legal and illegal drug use.
Some people have been known to get headaches and shakes if they don't have their morning cup of coffee or cigarettes. There is no stigma because caffeine and tobacco are legal drugs that are readily available to purchase.
No one ever asks them why they drank their first cup of coffee or smoked their first cigarettes. In fact over 400,000 people die each year from smoking related diseases.
Other addictions being acknowledged are (food, gambling, and sex).
It has been speculated that our individual chemical makeup determines whether or not we have the "trigger" that causes us to become addicted.