[aragot]

Sure, but wouldn't automation provide something more? If people know it's automatic, they're less enclined to assume the driver will stop; There is also less risk that the computer-driver is at fault; and last but not least, the video of the accident could be tweeted immediately so everyone is convinced that the biker/pedestrian/car is at fault. As opposed to human drivers, who are more reluctant to be filmed because it invades their privacy.

[negativeview]

All of those things are logical and make sense, but are unproven. Politicians are notoriously risk adverse when it comes to those kinds of risks.