The technology is still very experimental and needs a lot more investment before it works. They are good at promoting the technology so they can keep the investment funds flowing
The stuff on the road is driven by the likes of Uber who see employees as an unnecessary cost.
Have seen an example where the technology was used in a warehouse successfully however no people were allowed to be in there when it was working due to safety and technology limitations
Also seen a sort of working example that moved patients on trolleys around a hospital. Idea was to free up manpower however cost was an issue. Even this though presented problems for the technology
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