What is the purpose of the 5 whys strategy? how could you use the 5 whys strategy in your day-to-day life? (site 2)

The purpose of the 5 Whys Strategy is to find causes of potentially complex problems and to get to the root cause of many types of issues. The 5 Whys strategy includes asking why five times in order to get to the root cause of a problem. You can use this strategy also in real life, for example when you have the problem : your car is not starting. Some of the why questions would be: why won;t the car start?, why is the battery dead? ...