When we are in a strange place - it's dark or the way is unfamiliar, we reach out our hands and feel our way. Our skin and our touch, both with the other senses we have, give us information about our environment. We can function and perceive even when we are without sight or cannot hear. So they lost fingers and toes, noses and ears, because they were without touch and feeling. Man has depended on all of these senses for survival.
People are a soft touch.
Touch mirrors how the body is functioning. In our interactions with other people, we use touch. We hug each other when we meet or express emotion, slap someone on the back in congratulations or joy, shake hands on meeting, and pat a hand to show understanding. To touch someone is a personal gesture. Some people are not comfortable being touched by those they do not know well.