I know, I know. Getting a 6-year-old who has been riding in the car like a "big girl" to go back to a child seat would be no easy task. But now there's considerable evidence that keeping older kids in booster seats until they reach small-adult size reduces injuries and saves lives.

Understanding the Necessity
When children wear adult safety belts too soon, their internal organs can be injured if the belts ride up and slice into their stomachs in a crash. If shoulder belts are put behind their backs, their torsos can jackknife forward, increasing the chance of head and abdominal injuries. More than 80 percent of 4- to 8-year-old passengers in 30,000 car crashes studied by Children's Hospital of Philadelphia and State Farm Insurance were improperly restrained in adult-size safety belts. And the results were often tragic.

Autumn Alexander Skeen lost her 4-year-old son in a crash when an adult seat belt failed to keep him inside the car. Skeen is now a spokeswoman for Ford Motor Company's educational campaign promoting booster-seat use. "No parent should ever know the pain of losing a child, especially if death or injury is easily preventable," Skeen says.

Booster seats are available at many major department stores and at Web sites and superstores that carry children's products. Your vehicle's manufacturer or your insurance company may also be able to make suggestions about where to buy a booster seat in your neighborhood. Some insurance and car companies even have special programs that offer the seats for free or at a discount.