It’s been referred to in the past as left brain vs. right brain, which may or may not be true depending on which research you buy into. I can say that, as a CS major, I am much more inclined to back end and database programming - I can see the logic and it makes sense to me. I’ve tried various artistic endeavors and found that’s just not my strength - I totally can’t do random when it comes to painting. Everything for me breaks down to a pattern and logical rules.
Others see the world more visually and artistically, and are willing to work with looser rules to get the end result they are looking for. Which is why I won’t say one is harder than the other - it really depends on how your brain is wired. There’s no right or wrong here - just that you will likely be happier working in a discipline that meshes with the way your brain is naturally wired. That’s why we often take on interns or contractors - it gives an opportunity to see what someone’s passion is, and determine how well they fit the job, before committing to taking someone on as a full-time employee. We want to hire people who are passionate about what they do.