The Washington State Patrol says about half of all kids are sitting in car seats that are not installed correctly. Car Seat Safety: Nearly Half of Parents Install Incorrectly. A striking statistic has emerged as Child Passenger Safety Week unfolds: approximately 48% of parents and caregivers have improperly installed their child’s car seats. This alarming figure, highlighted by the Washington State Patrol (WSP), shows widespread confusion on the proper installation and use of car seats to ensure the safety of young passengers.