The Ace of Cups represents the possibility of changing one's habits and ways of thinking. The card indicates that you have the ability to take control of your life and make positive decisions that can lead to positive change. This means that you may decide to take more time to have fun and spend time in places like amusement parks.
Reversed Death suggests that there are some things you cannot change, such as your personal, work or family commitments. This card requires you to accept things as they are, even if this may mean making some compromises.
The World indicates that you may not be aware of the importance of taking time for yourself and enjoying the little things. The card also indicates that there may be a fresh start in your life, providing the chance to discover new people, activities and opportunities that you have not considered until now.
In conclusion, the three cards suggest that it is important to take time to have more fun. Yes, it is possible to take control of your life and make positive choices to bring about positive change, but you also need to accept some things as they are. Additionally, there may also be some undiscovered opportunities that are worth considering. So, the answer to the question is Yes; he should take the time to have more fun.