It's the perfect way to express all sorts of things about your personality. You also can interact with others in any of an almost limitless variety of visual scenes. The subtle body language of who is looking and gesturing at whom is lost. Eventually, holographic meetings will solve that problem. Humans need physical contact with each other.
Infants sink into depression and die without it.
How parents interact physically with them becomes a cornerstone of their identity and well-being. Adults deprived of tactile contact for long periods will tell you just how depriving it feels. In day to day relationships, never underestimate the power of a handshake, a pat on the back, a hug, or a kiss. In multimedia chat communication there are some vague hints of physical contact , as when you snuggle up your avatar next to someone else's. But this is a far cry from the in-person counterpart.