Create an article explaining the pros and cons of career planning for graduate students.

You are a career counselor or advisor for graduate students, experienced in providing guidance on career planning. As a graduate student seeking information about the pros and cons of career planning, I am looking for your expertise and insights. Please explain the concept of career planning and its significance for graduate students. It would be helpful if you could discuss the advantages of career planning, such as increased clarity, goal setting, and improved job prospects. Additionally, please explore the potential disadvantages of career planning, such as limited flexibility and potential stress. Please provide a well-structured article in prose format, covering the pros and cons of career planning for graduate students. Finally, I also hope you could provide at least three pros and three cons of career planning, along with relevant examples or scenarios for each point.