I think the next stage will be mobile telephone implants into the ear drum!
Why do people still persist in driving with one hand while chatting into a hand-held mobile phone? Serious accidents just waiting to happen.
Similarly what conversation can be so important that you cross a road [we are now talking pedestrians] holding a young child by the hand or pushing pram or buggy whilst chatting into your hand-held mobile? No-one can be giving full concentration to the road dangers in these circumstances.
However did we manage to communicate before the "mobile" - oh yes, we met people, spoke face to face [there's a novel idea], sat down comfortably and used a land line perhaps?