It all depends what video games we talking about . In this case i will be talking about violent ones. Exposure to violence in a video games causes a child natural level of aggression to increase within time. It is predicted that in the future there could be violent behaviors.
Violent videos games come with (weapons, bad language , sexual images , abuse , and stealing, etc.)
Don't get me wrong there is great learning games out there for children to play that are non violent.
Some games have strong effects on children , the way the video game is designed are way to graphic and within time if the child is exposed every day to these games can become to aggressive. But this all begins with the parents because they are the one allowing their children to play such violent games. If you go to Walmart, Game stop, Target they ask for the id before purchase to see the age which means older people should play but i believe neither ages or mental should play because of how harmful it can be.