Two people with one belt around them could injure each other. The cargo area of a station wagon, van, or pickup is a very dangerous place for anyone to ride. Anyone riding in the bed of a pickup truck, even under a canopy, could be thrown out. An infant or child could be seriously injured or killed by an inflating air bag. A passenger air bag can seriously harm a child riding in the front seat of the car.
Many new cars have air bags for the right front seat.
The owner's manual will also verify this. An inflating passenger air bag can kill a baby in a rear-facing safety seat. An air bag also can be hazardous for children age 12 and under who ride facing forward. This is especially true if the child is not properly buckled up in a safety seat, booster seat, or lap and shoulder belt. In a crash, the air bag inflates very quickly.