Tips and best practices for parents and caregivers to keep children safe. Buckle up every age, every trip. Motor vehicle crashes are a leading cause of death for children in the US. Buckling up is the best way to save lives and reduce injuries. Child passenger restraint laws result in more children being buckled up. Only 2 out of every 100 children live in states that require car seat or booster seat use for children age 8 and under. A third of children who died in crashes in 2011 were not buckled up. We - especially parents and ...