You may think that keeping a map of where you are and where you are going is not needed.
If you know exactly where you are going, what the path is, and you are not going to deviate then a map is not important.
If you deviate, or you are unsure of the path, a map can save your life.
If you have a map of where you have been up to this point in your life, and you have a path laid out for your future you have something to compare to.
The thing is, you will at some time, get lost.
At this point having your map to figure out a better path, or to get back to where things were working is invaluable.