No. Most students don’t know what they want to major in when they start college, and others change their mind at least once. At most colleges, students don’t have to choose a major until the end of their sophomore year.
That said, choosing a major earlier rather than later can help students graduate in four years, because they'll have more time to take the required courses—and that'll save them (and you) the cost of a fifth year of college. Read more about college majors.