Individuals who get a sense of happiness and comfort when they are drunk or euphoric because of the consumption of drugs or alcohol are what we can classify independently as addicts. Anyone who suffers from addiction has got their own reasons and a story about how and why they get this situation they find hard to overcome.
For some, the reason behind their addiction was due to family history and background. Sometimes it may be due to genetics but only with very small percentage, but this would probably stem from the mental or emotional factors of the individual and also the environment in which they grow up. A child who watches his father's alcohol drink his days away could either learn to be away from alcohol or be pushed for it, this means more for alcoholics instead of drugs. It can be said that drugs are addicted to their substance after using drugs such as high level painkillers and so on.
Furthermore, there is a very common reason for addiction because an inadequate person influences stress effectively. When they are surrounded by group pressure, social stress, emotional stress, anxiety, depression and so on and not knowing how to deal with it, they would turn to alcohol and drugs for it obviously relief and tranquility. Similarly, others become addictive due to psychological illnesses such as shock or attention deficit.
In addition, children who do not get the right education on drugs and alcohol can become curious and leading and simply try whatever they get their hands to think it's just a thing. But this is where the problem starts, by trying. Also, those who are not educated will also influence society, friends and corrupt environments around them. Here it is important to impart a good amount of theory and help the children to be clear of substance.
There are many reasons for addiction, killing addiction, dealing with the reason the addict started in the first place and helped them with rehabilitation.