^The numbers vary from year to year; what is true is that a majority of Harvard freshmen took calculus in high school. We can assume that those who didn’t either had an academic spike (something they’re so extraordinarily good at that the general math background doesn’t matter) or a good reason (such as coming from a HS that doesn’t offer calculus, which MANY do not.)
However, OP made it clear her daughter doesn’t intend on applying to colleges with the selectivity level of HYP.