It's the Law.
Car accidents cause injuries and known deaths to pets.
Being confined, your pet is not able to become a projectile due to a sudden stop or a sudden swerve to avoid hazard. The worst place for a dog to be is on the shelf behind the back seat in a sedan. The next worst spot is on the lap of the driver. Air bags are not designed with your canine companion in mind. Most people wouldn't dream of putting their children in these dangerous positions, but dogs are routinely transported without regard to safety .