Part of the reason may be that Glass bypasses the familiar, disarming physical ritual of photography: when a person raises a camera, or a smartphone, everyone know what it means. Somehow an indicator light seems insufficient to overcome perceptions of Glass as furtive and dishonest. Some businesses have asked Google Glass users to remove their wearables or leave.
In an idealized future of complete automation, robot-staffed factories will crank out goods loaded into tractor-trailers without drivers. These will transport shipping containers to ports where robot cranes will load them onto crew-less ships. The same process will reverse itself on the receiving end, where the entire supply chain could be set into motion by online impulse buys made by the only human connected to the whole process — the consumer.
If the search giant follows through with its early efforts to compete with Amazon in the retail game, these autonomous vehicles could become a driverless fleet for the last mile of online order fulfillment.