That depends on whose insurance you're using. If you rely on your regular everyday auto insurance to cover your rental car, chances are that anyone living in your house is covered. If you think you may want your teen to do some of the vacation driving, broach the subject with your agent before you leave home. Ask the company involved who is allowed to drive, and get the answer in writing. Find out before you get to the rental counter.
People are usually more concerned with whether their swimsuits fit.
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