I guess you have written this essay in preparation for IELTS or TOEFL. Am I right? :)
Nowadays, with the problem of inflation surging, a significant amount of people is considering more than one job to earn a living.
.... this sentence does not have any grammar issues, but you can tell this same idea in a more comprehensive and interesting way. It is important that you have an interesting hook statement to open your essay.
Also, your introduction deviates from what your prompt speaks of. It talks about doing several careers from a different perspective that people wish to further their knowledge in different fields. That is what I understood by its last line;
The new fashion mil be to have several careers or ways of earning money and further education will be something that continues throughout life.