Speaking from my experience, minoring in something you’re interested in outside of your main field of focus can be really rewarding. I majored in Chemical Engineering, a field I was, and still am, hugely passionate about, but I minored in Classical Studies which had absolutely no overlap with my major but was something I found fascinating. In my minor, I studied the Latin language, Greek, Egyptian & Roman epics & mythology. And as odd as it sounds, the complete divergence of these directions of study, really balanced my academic career and helped my growth as a student. In engineering, my focus was entirely technical, mathematical, scientific, etc. whereas my minor allowed for my literary and historical interests to also be explored. My methods of learning were challenged and forced me to grow to meet those challenges.
My minor in Classical Studies has also made for some entertaining interview chit-chat as interview teams often wonder what my impetus in minoring in that field actually was, which is a great lead-in for me to explain that I’m open and have many interests and I pursue those interests because I love to learn and be challenged.
Also, as an important note, because my minor was something I found genuinely interesting I did put the effort in to completing it successfully, and even earned a spot in their honors society, so it definitely didn’t hurt my overall GPA.
My advice is simple, don’t shy away from your academic interests; it’s rare, especially later in life, to have the same academic flexibility that you have in college and it’s for that reason as well as for the betterment and expansion of your own field of knowledge, that you should take the opportunities to explore the things that truly pique your passion.
Good luck with your studies, wish you the best!