It's never too soon to teach car safety.
D000063:Accidents, Traffic; D001336:Automobiles; D002675:Child, Preschool; D006266:Health Education / Q000379:methods*; D006801:Humans; D007223:Infant; D012149:Restraint, Physical; D012622:Seat Belts; D014947:Wounds and Injuries / Q000517:prevention & control*