Children who said their parents do almost no physical activity had a 50% greater risk of being unfit than children with more physically active parents.
1. Voss, Christine & Sandercock, Gavin. (2012). Associations Between Perceived Parental Physical Activity and Aerobic Fitness in Schoolchildren. Journal of physical activity & health. 10. 10.1123/jpah.10.3.397. (https://www.researchgate.net/publication/229436048_Associations_Between_Perceived_Parental_Physical_Activity_and_Aerobic_Fitness_in_Schoolchildren)