Training wheels: States that require learner’s permits for three months or more lower teen crash rates by 15 percent. Keep them practicing for at least that long.

I call shotgun: Don’t stop riding with them after they get their license, either. Supervised driving is key. States with 30 or more required hours have 29 percent fewer deaths for 16-year-olds.

No friends allowed: Other teens lead to reckless driving, so be the bad guy and keep friends out. States that don’t let new drivers transport young passengers have a 48 percent lower fatal crash rate in new drivers.

Afraid of the dark: Give their car a curfew, too. States that prevent 16-year-olds from getting behind the wheel after midnight reduce fatal crashes by 57 percent.