"I think there will be plenty of unintended consequences when it comes to recognition - something that evolution has had millenia to perfect."
Many years ago working in Africa I had a near miss one night. A local stepped in front of the car without any apparent regard for my speed.
There were apparently two factors. One was the darkness and the lack of reflectivity from his skin and dark clothes - so I had no warning until he was in the headlight beam. The other was apparently that judging an approaching vehicle's speed is a learned skill. If you didn't live in a town that skill wasn't honed to handle cars on good roads.
Somewhere in the Far East it is said pedestrians crossing the street just walk into the multi-stream traffic at a steady rate. It is expected that the drivers will avoid them.