People don't need alcohol to be unable to drive, or be in a state where they shouldn't be driving. After a hard day of work, people are often too tired to drive

People don't need alcohol to be unable to drive, or be in a state where they shouldn't be driving. After a hard day of work, people are often too tired to drive; Elderly people often don't feel comfortable driving (often still do because it's their only way of getting around); People with disabilities often can't drive, or need expensive adaptions to be able to. Children can't drive (legally) at all. These are just some of the use cases. But also people who are fully capable of driving get advantages, particularly regarding commuting - instead of sitting in the car for an hour, one can rest, or if the job allows it, work on the way to the office. Additionally: we, as humans, suck at driving. And whilst it's a valid question whether machines can currently do a better job at it, I'm glad that there's time and money spent towards a future without human drivers (apart from driving as recreational activity).