(KAIT/NBC) - Parents often have rules for their teen drivers to encourage safe driving for new hands on the wheel. But a Liberty Mutual study shows that parents don't follow the rules they've set.
When the parents don't obey those rules, teens follow suit.
About 36% of parents justify their own bad behavior because they have more driving experience.
More than a third of parents say it's a challenge to enforce punishments because their teens are hard to monitor.
Liberty's Mike Sample says 44% of teens surveyed said the primary reason they use the phone while driving is to contact or respond to their parents.
"You could have 3 months' experience or 20 years' experience, if you glance away from that road something bad could happen," he said.
More car manufacturers are offering built-in safety monitoring features. There are also apps and in-car devices that can track speed, even silence phone notifications when the car is in motion.
Click here for more of the study.