The end goal may be to eliminate the need for humans drivers, but that’s going to take a lot of time to pass through the legal system. In Elon Musk’s last Tesla statement, he said this:

Even once the software is highly refined and far better than the average human driver, there will still be a significant time gap, varying widely by jurisdiction, before true self-driving is approved by regulators. We expect that worldwide regulatory approval will require something on the order of 6 billion miles (10 billion km). Current fleet learning is happening at just over 3 million miles (5 million km) per day.