The crude tools found during the phase of the Paleolithic period were not considered art and were intended for practical purposes like hunting.

The lower phase

During the Paleolithic period that is called as the old stone age that is period of the human history which saw the 99% use of the man-made tools.

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artists need to create a realistic interpretation so that people in general can relate to the artwork. for a common people, an artist's impression gets increased only if he can create something which would look realistic. an abstract is difficult for a common people to understand whereas if a person can draw a girl with simple pencil sketch and if that looks like a real figure then the latter will be praised more than the former.