I spent 2 years working for a company (https://www.jbtc.com/en/north-america/automated-systems) that had been selling fully automated forklifts since the 90s (You read that correctly, 90s). They built special custom forklifts that were purpose built to not have human operators. It would have been awesome if the company had a way to call on human backup to drive the vehicles remotely when something went wrong or a special order came in. The more people you can keep off the factory floor the safer it's going to be.