The constant expansion of the media which additionally accelerated with development of technology, led to mass media as one of its main characteristics. Even though their promotion includes all kinds of interesting and positive sides, still the poor media functioning is being investigated and proved. Young people, as well as the children, resort to the media the most, therefore it is necessary to defend the role of the parents, teachers and the environment versus co-educators such as the media. The aim of this study was to determine frequency of electronic media use by children from first to fourth grade of primary school. Furthermore, to determine the intensity of children´s engaging in certain physical activities and the extent to which parents restrict their children's access to electronic media as well as the activities they encourage children to do in their free time. A significantly higher percentage of parents restrict their children's access to electronic media and such parents encourage their children to hang out with family and friends, spend more time on fresh air, do some physical activities, read some books or learn something unrelated to school content even though that is not children's favorite activity. The results indicate the importance of parent’s control when it comes to children’s use of electronic media and the positive effects that parental control has in terms of encouraging children to useful, socially desirable, physically active and healthy activities.