Ultimately, you dont have to trust a computer. You have to trust the corporation that built that computer. That is quite different IMO. How am I supposed to entrust my life to a machine built by a corporation that just recently dropped the slogan "we wont do evil"? How am I going to entrust my life to a machine that has been built by a company that, like all the others, is maily interested in maximising profit margins? Why should I believe they care about my health as an individual? As you said, if I am passenger of a human driver, I can at least hope they dont want to die. If the machine crashes itself, who cares?

You trust corporations all the time to make products, construct buildings, etc. to not kill you when used more or less correctly in accordance with what most people would consider common sense because said companies know they will be sued, fined, etc. if they don’t make safe things. It’s actually unclear what this means in the context of autonomous vehicles that will presumably have some non zero accident rate even if safe enough at some level.

Which is why the recennt spike in pedestrian and bicycle deaths is even more alarming.