<p>Contrary to popular belief, it is not mandatory to have calculus in high school at most colleges, even most of the highly selective colleges*. Certainly, having calculus in high school can be useful in a lot of situations, but students and parents should not think it is the end of the world if that cannot be scheduled.</p>
<p>*Caltech, Harvey Mudd, and engineering at WUStL are among the few exceptions.</p>