The aim of this study was to examine the extent to which parents' participation in sports and their attitudes affect children's physical activity and to define the differences in parents' attitudes about physical activity with regard to nutritional status. For the purpose of this research, a standardized questionnaire (PPPAS) (Kimberley Lakes and associates) was used. The survey was completed by 97 respondents, mostly parents whose children are participants in organized kinesiological activities of the association "Plesaoncica" aged 4-14 years. This paper focuses on benefits of children's regular physical activity and their developmental characteristics. It is driven by a social cognitive theory of how individuals learn behavior by observing the behaviors of others, especially those persons who in the eyes of the observer evoke respect, which in this case are parents. The results of this research show that the vast majority of parents have positive attitudes about the inclusion of children in organized physical activities. T-test analysis for independent samples tested the significance of differences in parents' attitudes with regard to former physical activity, with regard to nutritional status and with regard to current involvement in organized physical activity. Based on this research, it was concluded that parents' attitudes about children's physical activity do not differ with regard to their participation in physical activity during childhood, nutritional status or activity now. The reason for this may be a sample of respondents that was not made by random selection, but is a specific sample of parents of children who are regularly involved in physical activity.