The interesting thing about cars is that you have to learn a lot to use them. They are definitely NOT intuitive to a complete novice. It seems quite odd to me that we expect computers to be completely intuitive to someone with no knowledge or training. The price of that is complexity and dragging down the skilled user. Complexity always has a price in reliability and stability. Simple implementations are more reliable because of having fewer gears to jam, but they ask the user to turn a few knobs and learn a few skills.

Why do we expect PCs to do everything without input and cars to only do what they are told? A car is more like a lever that allows a skilled person to go faster and travel farther. Levers are better than automatons for most tasks, because they amplify people's skills, rather than squelching them.