Final answer:
The age requirement for a real estate broker or salesperson's license is determined by real estate laws and regulations.
Step-by-step explanation:
The subject of this question is Law. The requirement for attaining a real estate broker or salesperson's license is determined by law, specifically real estate laws and regulations that vary by jurisdiction.
For example, in the state of California, to obtain a real estate license, an individual must be at least 18 years old. However, requirements can differ in other states, and some may require individuals to be at least 21 years old.
Overall, the age requirement for a real estate license is set by the governing body or agency that regulates the real estate industry in each jurisdiction.