Final answer:
It is true that you must have a valid driver's licence to legally operate a motor vehicle in Saskatchewan, which is required to ensure all drivers are skilled and knowledgeable about traffic rules.
Step-by-step explanation:
According to the traffic rules and regulations in Saskatchewan, it is indeed true that an individual must have a valid driver's licence to legally operate a motor vehicle on public roads. This rule is in place to ensure that all drivers have the necessary skills and knowledge to drive safely and are aware of the rules of the road.
Obtaining a driver's licence in Saskatchewan involves passing both a written exam and a practical road test, which evaluates the driver's ability to operate a motor vehicle safely.