Is it a waste to study Chemistry but want to do design?

I'm about to take the 10th grade exam. My parents want me to choose a subject to take the entrance exam to a specialized high school, in order to have an advantage when applying to university.

I find myself quite interested in Chemistry, but in the future I want to do design - a field unrelated to Chemistry. If I major in Chemistry but later work in a job that does not require knowledge of this subject, will it be a waste of time and effort at a specialized school?

Nhat Anh