When you say "cadre status", you mean becoming a full member and grading. This thing is a procedural process that your file storage unit (the company or talent center where you work) automatically handles for you one year after you graduate from college. However, if it is put in school, the school will not do it. This thing is still useful if you go to state-owned enterprises or institutions in the future. Moreover, in some places, this thing also involves seniority.