What is the main consequence of worn shock absorbers in a vehicle?

Worn shock absorbers significantly affect a vehicle's handling and stability, leading to a condition where the car tends to wander on the road. Shock absorbers are designed to dampen the impact of road irregularities and help keep the tires in contact with the pavement. When they are worn, the vehicle may bounce excessively, causing it to lose traction and resulting in a feeling of instability. This lack of control can make the car feel as if it is drifting or wandering, especially when driving on uneven surfaces or during turns.

While other options like decreased fuel efficiency and loose steering might occur as well, they are more indirect consequences of shock absorber wear rather than the primary effect. The most immediate and noticeable consequence is the wandering sensation, which directly impacts driving safety and control.