Accepted into the college but not the major?

<p>Hi im a high school junior and im beginning to learn about applying to colleges but still confused. UT Austin is one of my top choices because they have a great nursing program. Im hoping if i stay top 8% ill be automatically admitted but lately i've been hearing that a person can be accepted into a college but NOT into their major, why is that?</p>

<p>If they decline you of your major allow you to be undecided, but accept you in the school, can you eventually get into your major if you do all the courses?</p>

<p>What makes the school decline you of your major?</p>