Who must be in the vehicle when driving with a learner's permit?

Having a licensed adult driver who is at least 21 years old present in the vehicle when driving with a learner's permit is essential for several reasons. This requirement ensures that the learner has access to proper supervision during the driving experience. A licensed adult driver who is at least 21 is expected to have a level of experience and knowledge about driving laws and safe driving practices, which can provide guidance and help prevent accidents or mistakes made by the learner.

Additionally, this regulation helps reinforce safe driving habits, as the supervising adult can offer immediate feedback and assistance on the road. The presence of a competent supervisor is crucial for building the learner's confidence and skills in a controlled environment, making it safer for both the learner and other road users.

The other options would not meet the specific requirements set forth by driving regulations, as they do not include the necessary experience or age stipulations for supervising a learner driver.