This statement may not be entirely correct. Although in some cases, people who don't study may be richer than those who only study and don't practice, this is not absolute. Some possible reasons for this are as follows:

1. People who don't study may have more opportunities to explore their interests and talents. They may not be restricted by education like those who study, they may be more free to choose their favorite field, and they may succeed in this field.

People who don't study may pay more attention to practice and experience. They may gain more practical experience through work and entrepreneurship, so as to learn more knowledge and skills in practice, which may have a positive impact on their lives.

People who don't study may pay more attention to interpersonal relationships. They may be better at communicating with others, build wider contacts and gain more opportunities and resources.

People who don't study may pay more attention to practical problems and solutions. They may not be bothered by academic theories and abstract concepts, but pay more attention to the solutions and effects of practical problems.

In a word, people who don't study are not necessarily richer than those who study, which depends on their personal interests, talents, experience, interpersonal relationships and problem-solving ability.