At what minimum age must a driver hold a chauffeur's license to legally drive a taxicab?

Answer: C — 18 years

To legally drive a taxicab in Texas, a driver must hold a chauffeur's license and be at least 18 years old. This age requirement is in place to ensure that drivers have reached a level of maturity and responsibility necessary for operating a passenger vehicle for hire. While younger individuals may hold standard driver’s licenses or permits, the additional responsibilities and legal implications of driving a taxicab—such as navigating traffic, managing fares, and ensuring the safety of passengers—warrant this higher age limit. Options reflecting ages lower than 18 do not meet the legal standard set by Texas regulations for taxi drivers. The decision to set the minimum age at 18 helps promote safer driving practices among drivers in the public service sector.