Final answer:
It is not recommended to turn your wheels while waiting to make a left turn or U-turn due to potential dangers, such as being pushed into oncoming traffic, if another vehicle hits your car from behind.
Step-by-step explanation:
When waiting to make a left turn or U-turn, it is recommended not to turn your wheels because it can be dangerous. If another vehicle hits you from behind, your car can be pushed into oncoming traffic, leading to a serious collision. Keeping your wheels straight while waiting provides stability and reduces the risk of accidents.