Reading can definitely make money. The key lies in how you realize your knowledge. You can't just study at ordinary times, but you should also learn how to use knowledge flexibly.
The simple point is to learn a technology or major and find a related job to make money. Such as photography, accounting, lawyers, doctors, etc.
the more complicated thing is to make money by producing knowledge products and selling patents. Such as writers and scientific researchers.
especially in the era of knowledge payment, it is easier to realize knowledge, and you can get benefits by using your own knowledge to solve other people's problems in your own field. For example, Zhihu Q&A, Baidu Q&A and experience consultation.
as long as you are willing to use your brain and make efforts, you can make money anyway.