Understanding the basics is the foundation of any system, including personality theory. Cognitive functions are great for those who enjoy dissecting every nuance of human behavior—assuming they have the time and care to do so. However, most people just want to know what they are before diving into why. It's like trying to explain quantum physics to someone still learning addition; mastering the basics is essential before diving into complexities. But hey, feel free to spend your time explaining functions to people who didn't ask. I, however, choose efficiency.