<p>In my experience, many students change their major from their first choice. Some of this comes from difficulty in making the grade, some from changes in what the working world demands <a href=“many%20times%20a%20shortage%20becomes%20a%20surplus%20as%20a%20flood%20of%20new%20engineers/lawyers/etc.%20come%20out%20of%20schools,%20and%20students%20shift%20to%20meet%20demand%20in%20other%20fields”>i</a>*, some from discovery that they plain do not like the field they originally chose, and some from peer pressure.</p>