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I think you underestimate how far the technology can go. There are simple prototypes of sensors at MIT that can literally see round corners, using shadows to identify potential hazards. In the next "few" years, cars might be able to see children hidden by parked cars before they are even in view and bikes before they have even turned into the same street as the car. It actually works pretty well already, on a very small and simple scale.
https://www.digitaltrends.com/cool-tech/mit-camera-see-round-corners/
Edited for better article: https://www.google.com/amp/s/amp.theguardian.com/science/2019/jan/23/creepy-things-ordinary-digital-camera-computational-periscopy-can-see-round-corners
It's going to take a while, but I'm pretty confident the tech will get there one way or another. Don't focus on refining what we have now, at the expense of ignoring what will exist in the future. It's human nature to dismiss the capability of nascent technology, and opinions like these are often wrong.
Autopilot cars don’t deal well with unpredictable things like pedestrians and cyclists. If they become the norm then I’d wager we’ll all be banned from the roads as it’s by far the easier way to solve the problem.