Environments supportive of risky (challenging and exciting) outdoor play promoted increased play time, physical activity, social interactions, creativity, and resilience among children. The overall positive health effects of increased risky play provide greater benefit than the possible negative effects of injury.
Brussoni, Mariana, Rebecca Gibbons, Casey Gray, Takuro Ishikawa, Ellen Beate Hansen Sandseter, Adam Bienenstock, Guylaine Chabot et al. (2015). What is the relationship between risky outdoor play and health in children? A systematic review. International Journal of Environmental Research and Public Health, 12(6), 6423-6454.