"Conclusions Unless space for young children in restraint seats can be provided at low cost to families, with little or no diversion to automobile travel, a policy requiring restraint seat use could cause a net increase in deaths. Even excluding this possibility, the cost of the proposed policy per death prevented is high."
The death rate is slightly less in 2022 compared to 2003.
https://en.m.wikipedia.org/wiki/Motor_vehicle_fatality_rate_...