What qualifications are necessary for teaching a beginner how to drive?

To teach a beginner how to drive, it is essential to have a solid understanding of driving rules and responsibilities, which is typically provided by an individual who is at least 21 years old and holds a valid driver's license. This age requirement helps ensure that the instructor has sufficient experience and maturity to effectively communicate and manage the learning experience for new drivers. Additionally, being a licensed driver guarantees that the instructor is familiar with state laws and safe driving practices, which are crucial for educating a novice.

Other options suggest various combinations of age and licensing that do not encompass the minimum age requirement of 21 years, or they imply that a valid driver's license alone is adequate, which does not take into account the importance of age and experience. Having a certified driving instructor is beneficial for a more structured approach to education, but it is not the only way someone can effectively teach driving as long as they meet the age and licensing criteria. Thus, the qualifications specified in the chosen answer not only support safe driving education but also align with the typical regulations for driving instruction.