This thesis explores the frequency of exposure of preschool children to animated films and video games containing violent content, as well as the connection between watching animated films or playing violent video games and the occurrence of violent and aggressive behavior in preschool children. The focus is placed on the animated films and video games that children are exposed to today, as well as the importance of parental presence when consuming digital content. The research results indicate that most children consume digital content daily through animated films, while most children have not yet played video games. A large number of parents believe that the cartoons their children watch do not contain violent elements, but the majority of parents reported that their child exhibits aggressive, hyperactive, and irritable behavior after watching cartoons. Although most children do not play video games, parents whose children do play have noticed negative changes in their child's behavior, such as aggression, restlessness, and imitation of characters. Parents express a desire for more education in kindergartens about violence and digital devices that children are surrounded by on a daily basis. The vast majority of parents believe that they themselves need to focus more on their children, talk to them more, educate them about the use of mobile devices, and spend more time with their children in nature and play. It is concluded that animated films and video games can stimulate and greatly influence violent behavior in children, but that parents play a crucial role. Their education of children regarding the use of digital devices, as well as discussions with their children after consuming cartoons and video games, and allowing children to watch and play content appropriate to their developmental age, are essential.