It can be a solution for people who have addicted to gambling, and they want to stop gambling. Maybe they will have difficulties to find a new desires/hobbies/focus because they never think before, and I think they will need help from the other people to choose or give an idea to them. It is normal if they still think about gambling because that will not be easy to distract their mind from gambling in the beginning. But if they can do that new thing, they will prevent from thinking about gambling because they already build a new habit.