Violent video games can cause young children or young teenagers to have aggressive behaviors, typically. Sometimes violent games can let someone let out the emotion or have the rush that they may not be able to get or feel in real life. These video games have fantasies and they rely on them to release stress or just to have fun and enjoy the gory, cruel, mean fun they can have. For instance, in the game Grand Theft Auto, you can randomly walk up to people and rob them in broad daylight, without consequence. Where as in real life, there is consequences for such actions. 
War games are also popular for the younger generation. In the war games you can go on missions or kill people with heavy artillery and also get away with it. The missions in the warfare games relate to the real special forces that many countries have today and the young children play them thinking as if they were out on the battlefield their self. Our youth today plays these violent, "modern" games and feels some sort of stress relief or just a way to get away from struggles in their life.
Describing the youth as vulgar can mean many different things but it is interpreted in this sense as young people or even children playing video games that have mature violence and adult content. Vulgar is a strong word and explains the thoughts of the younger generation after playing these games.
