WHY OBEY EMOTIONS?
It's amazing how emotions affect some people.
For example, a man may be afraid to talk to a woman on the street when he likes her. A mixed cocktail of emotions starts filling his blood — fear, anxiety, uncertainty, worries, and many others. They paralyze him.
Physically, there is nothing stopping him from doing what he wants. He could simply walk up to the woman he likes and say something, but he can't. The emotions fully control his physical state. He can't even take a step forward.
How did he allow some emotions to control his life that much? Or perhaps a more accurate question is: why hasn't he worked on himself to gain conscious control of his body and his life?
The animalistic state is the default. Animals are controlled by emotions, and children are controlled by emotions too. Most likely, he is stuck in a childlike state, which is why emotions fully control his behavior.
To mature and take conscious control, you need to work on it. It doesn't always happen naturally. Sometimes we need to deliberately put our minds to this task.
You need to build yourself into the person you want to be.