Final answer:
To register an unmanned aircraft in the US, one must be at least 13 years old if they are a US citizen or permanent resident, and this same rule applies for non-citizens when they first operate the aircraft in the US.
Step-by-step explanation:
The registration of an unmanned aircraft, commonly known as a drone, is governed by the Federal Aviation Administration (FAA) in the United States. According to the FAA's current guidelines, individuals must be at least 13 years of age to register an unmanned aircraft if the individual is a U.S. citizen or permanent resident. If the individual is not a U.S.
citizen or permanent resident, they must be 13 years of age upon the first operation of the aircraft in the United States. The process of registering an unmanned aircraft is important as it promotes accountability and safety in the national airspace. Formulating an opinion on age restrictions for voting, such as whether the voting age should be as high as twenty-one, could lead to a comparison with other legal age requirements like drone registration.