No, your personality is set by the time you are one to two years old. Some development continues well into adulthood, but not to the degree that any outward, regular stimulus can affect it much.
No!
Violent video games have a negative impact on the mind's of children, and teens. Generally, the viewer of the video game will have an urge to follow of copy what is happening in the video game. People are advised to follow the gereral ratings of the game (suggested by professionals). MW3, and Call of Duty are poor examples of violent video games. Both are rated M.
Teens actually have a deliberate choice in the matter. However, what images and attitudes a child takes and repeats during play most definitely influences their conscious choices and personality development. In that aspect, yes, they are definitely responsible for much violent behavior in teens.
the opposite of a passive personality wherein the aggressiveness is manifested by strong actions of violent or pushy behavior
Vain, vengeful, venomous, vicious, villainous, violent and vulgar are personality traits.
It makes them cooler
A very low percent, if not at all. School massacres are caused by those with personality disorders, which include paranoia, suicidal, etc., even confused bullied students.
collision
Because they are to small to play violent games
violent kids
Video games do not make kids violent.
Studies have shown that violent video games don't make people more violent.