Why Helmets? Children participating in organized sports, such as these 6- to 8-year-old male and female hockey players in Vancouver, BC, need to take precautions to avoid injuries. The emphasis at this age is on skill development and having fun. Young children are not allowed to body check, and at all ages they wear helmets to protect against potential concussions.

JOHN LEHMANN/THE GLOBE AND MAIL/CP IMAGES