The existence of social classes are too far apart causing difficulties for certain groups of society to express his artistic activities. As a result, some individuals use the facility almost available throughout the city, namely the wall.
Arts education is less cause the objects that often appear in the form of graffiti writings or password that is understood only at certain levels. Usually this work showed dissatisfaction toward the social conditions they experience.
Although graffiti is generally destructive and cause high maintenance costs of cleanliness of the city, but graffiti remains an artistic expression that must be respected. There are so many famous artists who began his career of graffiti activity.