<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
How old do you have to be to rent a car?
<|assistant|>
The legal rental age differs by car rental company, but in the United States, the general requirement is 21 years old. Most car rental companies will also require you to have held your license for at least one year and to provide proof of insurance. In some cases, you may need to pay an underage fee or obtain a special wavier in order to rent a car.