What would be a good career for someone with doesn't need to worry for money

Ayan,
A good day to you.Ayan,
The Question was a very bright question to ask indeed. I will answer to what I myself have learned in psychology classes.
Some people find that when a person works, that person feels a need to fulfill a purpose in life of a calling that one might have. If you have no goals and no purpose or dreams to fulfill this leaves nothing to want for. A famous quote by Jim Carrey,” I wish that everyone would become famous become wealthy, just to find out that money never solves problems or can buy happiness.” “Most good things in life are free” another great quote.
However, people have the need to succeed to their fullest potential. One does not want to sit and do nothing from 9-5. Go on trips, spending money, and all that good stuff starts to get old after a while after you have seen and done it all. That person has experienced life. If you have already saw and have done everything, there is nothing left for that individual to do, therefore that individual feels the need to make contributions and become an upstanding productive citizen of his or her village or tribe. There is nothing more left for that person to do or strive for at that junction the individual feels the need to contribute themselves to the daily grind of those must work for a living.
I have been on both ends not having to go to work, I felt as if I was missing something. The daytime TV is no fun anymore, the shopping is no fun anymore, when you have what you need what is left to buy The exception the rule would be individuals raising children with a purpose the child to be raised by a parent and not by a nanny or a daycare center homemakers sit at home raising children and are content because the children keep them occupied all day and they have a purpose raising children, Some people are not content with that. I am one of those people who want to be the best person I can be. I wanted a career.
Some people can be content with staying at home watching the television all day or whatever that people do, there is still an empty spot for some so they make a decision to go to work you can go live a lavish life the purpose of working is to feel needed in a status position. You want to be productive. However Some people are hoarders and feel the need to make more money too. That is the extreme example of why one feels the need to work when one does not need money, What they have is not enough and they want more.
There are so many variables this is a general question. I do know that working is to full fill a purpose for one to contribute to society according to the societal norms. A status positon in society.
Working gives a sense of purpose, understanding and a place in life. This is a status position in society.
One has the need to fit in, or be of use to others. A need to be independent without having to go to work unless you wanted to go is a good example of a person with a need for purpose in society standards for the societal norms. People and work go hand in hand from history until now. If you view an ant colony the ants all have jobs for the colony never straying from that colony unless they are a deviant ant. Laughing.
Helping others to help themselves. I think that would be my choice. Empathy.
Maybe that person has already done what they wanted to give of themselves already. Some people are takers some are givers. Givers must set the standard because takers rarely do. In our society, some people that are wealthy decide to just have fun and not give of themselves to anyone. Or they want to help out go back to work and contribute to our society. This is a case by case basis. Each person is different as the whys they do what they are doing. A good Career for a person who does not need money is to help others any way that person feels the need to. A person could help the community, or help animals. There are so many things that person could do to help society if he or she had much money. I would think I would be empathtic and help others to help them selves. A good Career would be Social Work, Psychology, Charity, or Animal foundation, Chidrens Hospitals, Cancer or Disease Research, There are many to choose from if you would like a list I would be happy to find more for you. I would open the largest animal safe haven in the world. To save and rescue animals that requires only classes in business start up development, maketing, classes on how to handle animals, animal trainer, etc.

It is crucial that you first identify your Interests, Values, Skills and Personality Preferences in order to make a good decision.

Learning about your interests will help you identify opportunities to pursue and the topics you are most naturally drawn to, making school and work more motivating and enjoyable.

Values are the things that motivate us and move us toward certain decisions, behaviors and goals. Values greatly influence the career decision making process, job satisfaction and, ultimately, life satisfaction.

Skills are the things that you are good at and have the ability to do well. Assessing your skills allows you to determine which ones you want to acquire or further develop, the specific ways to accomplish those goals, and how your skills match with potential careers.

Personality Preferences & Interpersonal Needs are related to your individual, innate nature and tend to be consistent over time. Understanding personality and interpersonal needs allows you to see correlations between the way you make decisions and your work style.