She is thinking to offer him car when he turns 16 if he plays a sport for 2 years. It is a type of Extrinsic motivation.
Extrinsic motivation is when someone is motivated by rewards or other factors, such as praise, fame, or money. Extrinsic motivation is not driven by internal forces unlike intrinsic motivation. Extrinsic incentive includes things like getting paid to complete a task.
When someone feels driven to act in order to receive a reward or avoid punishment, this is known as extrinsic motivation. For instance, people might anticipate receiving cash, presents, or praise. They might also worry about losing privileges or getting grounded.
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