https://www.cdc.gov/transportationsafety/child_passenger_safety/cps-factsheet.html https://www.cdc.gov/transportationsafety/child_passenger_saf... Car seat u

https://www.cdc.gov/transportationsafety/child_passenger_safety/cps-factsheet.html https://www.cdc.gov/transportationsafety/child_passenger_saf... Car seat use reduces the risk for injury in a crash by 71–82% for children, when compared with seat belt use alone. Booster seat use reduces the risk for serious injury by 45% for children age 4–8, when compared with seat belt use alone. Seems like reasonable benefits to me.