Especially on two-ways. Slow moving vehicles are on the right. If something s wrong with your vehicle, it is better to stay on the right. That way you can have more room to maneuver. Hit something fixed rather than moving.
Psychology also plays a factor.
When you re depressed and your mind is preoccupied with things other than your driving, it is suggested that you ask somebody to drive for you. Better yet, leave your vehicle at home and ride with somebody you trust. Brake, steer and tap the horn. Brake so that you can slow down or stop the vehicle. Steer to avoid collision, whether to the left or to the right.