Why don't we have fur over all our bodies? There was a popular book long ago, about us, called "The Naked Ape".
Think about the Hint in your question.
Think about how sensitive our finger tips are to touch.
Think about how the hairy parts of our bodies never touch anything in the same way as our fingertips. But the hairy parts can sometimes sense something even before it touches our skin. Try this, with a piece of paper that just touches the ends of your arm hairs.
My guinea pigs have a long whisker near each eye, and, if I touch the end of one of the whiskers, they turn their head in that direction.
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