<p>If not, how hard is it to figure out what you want to do? Will this take more than 4 years?
Explain</p>
<p>Not necessarily, but you have to pay attention to the prerequisite chains of courses for all of the majors that you might do, so that you take enough of those courses to avoid delaying graduation if you do choose the major.</p>
<p>For example, suppose the physics major has a seven semester long prerequisite chain. If you are considering the physics major, you need to start no later than second semester of freshman year to avoid delayed graduation if you do choose that major. if you wait until second semester of sophomore year to start the courses for the physics major, you will graduate a year late.</p>
<p>Generally, if you are undecided between several humanities or social science majors, it’s usually not a problem to wait until second semester sophomore year to decide. That may also be true for business. But as ucbalumnus points out, in technical fields there may be chains of courses you need to take, and in addition, many have a very high number of required courses; the requirements of one (interdisciplinary) major my DD is considering at one school leave only 12 hours for “free” electives in four years. </p>
<p>The problem gets worse, of course, at schools where it can be difficult getting into needed courses. One question we’ve asked at each school we’ve visited (generally of the tour guides, where we figure we’ll get straighter answers than from the admissions reps) is how difficult it is to get into classes.</p>