Why does the Audi A8 have a self-driving feature?

I am considering purchasing an Audi A8, and I've heard that it has a self-driving feature. What are the benefits of this feature and how does it work?

The Audi A8's self-driving feature, also known as Traffic Jam Assist, is designed to enhance safety and convenience in heavy traffic situations. It allows the vehicle to accelerate, brake, and steer autonomously at speeds up to 37 mph, reducing driver fatigue and stress during stop-and-go traffic.

In addition to improving the overall driving experience, the self-driving feature on the Audi A8 also includes advanced safety features such as forward collision warning and automatic emergency braking. These features can help prevent accidents and make driving on busy roads safer for both the driver and others.