Your point flies in the face of decades of evidence in the field of cognitive psychology.
Our brain is not defined as "that which makes decisions". Brains do many things, in many different ways, and the vast majority does not involve anything that could be meaningfully described as "deciding".
For the particular distinction here, the book "Thinking, Fast and Slow" by Daniel Khaneman gives a pretty detailed exposition.
Explicit decision making is slow, energy intensive, and unnecessary the vast majority of the time. And including all the implicit decision making in your definition would be like saying a leaf decides every way it tilts as it falls through the air off a tree.
Our brain is not defined as "that which makes decisions". Brains do many things, in many different ways, and the vast majority does not involve anything that could be meaningfully described as "deciding".
For the particular distinction here, the book "Thinking, Fast and Slow" by Daniel Khaneman gives a pretty detailed exposition.
Explicit decision making is slow, energy intensive, and unnecessary the vast majority of the time. And including all the implicit decision making in your definition would be like saying a leaf decides every way it tilts as it falls through the air off a tree.