Which scenario is NOT an example of insurable interest?

The scenario of an airline insuring the lives of its passengers is not an example of insurable interest primarily because there is no direct financial interest or relationship between the airline and the individual passengers. Insurable interest requires that the policyholder have a legitimate interest in the life or wellbeing of the insured, which typically derives from relationships that create a potential for financial loss.

In the case of a business insuring its key employees, there is a demonstrable financial interest since the business relies on those key employees for its operations and success. Similarly, a spouse insuring the life of their partner has strong insurable interest due to the emotional and financial dependency involved in that relationship. Likewise, a parent insuring their child demonstrates insurable interest based on their responsibility for the child's welfare and financial security.

While an airline may have a vested interest in the safety and satisfaction of its passengers, this does not equate to an insurable interest in the lives of individual passengers, as the airline does not suffer a quantifiable financial loss in the event of a passenger's death.