<p>There are two separate issues involved here: how will courses taken in hs look to adcoms and affect admission and what should a student be studying once in college. </p>
<p>Applicants may explain that they are interested in both math/sciences and in humanities/social sciences, that they are currently undecided as to major; or they can explain that they are thinking of ways to combine different sets of interests (e.g history of science, science writing, science policy). Either way will be fine. They can also try, as my S did, to show that while very lopsided in one direction (in his case math/science), they have other interests as well; he wrote one of his two essays on his fiction writing.</p>
<p>Once in college, students are free to change majors as they discover disciplines to which they were not exposed in high school. As calmom explained it is easier to switch from math/sciences to other fields because the latter are not quite so sequential; but it is not usually the case even in the sciences that students have to choose at the beginning of freshman year. The first year is one of exploration. </p>
<p>So I would suggest that college applicants focus on one thing at a time, and that is the college application, not what to study in college.</p>