But these trials haven’t been without speed bumps. Passengers of self-driving Waymo cars in San Francisco say that their trips have been cut short because of vandals or those opposed to robot cars.

In 2024,a man covered the sensors of the robotaxi that had stopped. The cars stop moving when a person is nearby as a safety precaution.

Other passengers say they have become trapped inside while their cab is being tagged by graffiti artists or when a man asked for her phone number.

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