Put children under 4 in a child safety seat in the car, not on your lap
- High value
- Evidence A
- Buys life
- For: Child under 3, Child aged 3–18, Pregnant or trying
- Costs a lot
- Takes minutes
- No willpower
In plain words
For infants under 1 riding in a car seat, the chance of a fatal injury in a crash is about 70% lower. For children aged 1 to 4, it is about half. Holding a child on your lap gives no such protection, and in a sudden stop you can't hold on.
- Cost
-
A seat costs 300 to 2000 CNY and lasts several years. Each time you get in the car, it takes 1 extra minute to buckle the child in.
- What you get
-
The U.S. National Highway Traffic Safety Administration (NHTSA) estimates that child safety seats cut the risk of fatal injury for infants under 1 in cars by 71%. For toddlers aged 1 to 4 the reduction is 54%. The World Health Organization (WHO) puts it as a 71% reduction in infant deaths.
- Notes
-
Install the seat according to the manual; installed wrongly, it is as good as not having one. Under 1, install it rear-facing, so the child faces the back of the car. The figures above are U.S. official estimates from crash data.
- Evidence grade
- A : Specific numbers from meta-analyses, large cohorts or randomized trials; for law and policy, the statute or official text.
- Sources
-
- NHTSA (2024). Occupant Protection in Passenger Vehicles: 2022 Data (DOT HS 813 573). https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/813573
- WHO (2025). Road traffic injuries fact sheet. https://www.who.int/news-room/fact-sheets/detail/road-traffic-injuries
Mentioned in
Translated from the Chinese original. Original book, section 1, tip 10. This section is about health and medicines. It is general information, not a substitute for a doctor’s diagnosis or prescription. Content may be out of date and rules differ by place. When you actually deal with an agency, a doctor or a court, follow what local officials, doctors and lawyers tell you. Disclaimer