Physical touch is often misguided to believe that when people touch each other, it has to be some kind of sexual experience. This is never has been and never will be the case with humans.
Humans are always in need of physical touch, in fact, it is what drives to do almost anything at all. Once you have been neglected or deprived of physical human touch, you will realize just how lonely the world can be without it.
Yes, the other sense are also very important to your everyday life, however, physical touch proves to have the most positive results on the human psyche. Not only are you experiencing a bonding moment between you and someone else, but you are also releasing very important chemicals from your brain to the rest your body when you do so.
1. For Recovering
You need physical touch in order to recover from something traumatic that has happened to you. There is even such a thing known as therapeutic touch that has been practiced in massage, chiropractic methods, acupressure, and anything else that you can think of that involves humans touching each other for the sake of relieving stress. Even if you are still hurt and recovering from something so dramatic, allow yourself to experience other humans tending to your burden. You will feel weightless once you do so.