Addiction: From coffee and tea to drugs of abuse

The drugs abuse is a serious topic and should be treat like that. Has too many points of view and perspectives, but on this post I would like talk of the perspective of the teenagers and adults about this topic, but always from my point of view.
Teeners (or them that choice use drugs) see on the drugs the way to feel free on a chaotic world, the way to express oneself, and feel fine at the same time. The problem whit this is when the consumption become out of control, because the teen at this moment will try to experience again the first impressions that made feel and the unique way to make it will be (according whit the perspective of the teen) consume more drugs, they want to feel those feelings again but by not reach the expect state he fall into the frustration. Already on this moment the abuse of drugs have become harmful for his organism and the teen will not can rehabilitate for himself.
This previous description would seem too general and it´s right, because I have not taken into account others factors that would can to affect on the situation. Like the social environment of the teen, or what drug is it use, because all of them produce different effects; or the state of mind of the teen when consume drugs, and so on. For example, by I came from the drugs abuse is a common thing on teenagers (I include myself) and the explanations for this would be the geographic location. Cerro navia is a peripheral commune and like all of the periphy of Santiago has been the perfect place for drug traffickers, either for the poverty of the place or the lack of concern on the part of the authorities, i dunno.