The point is that a copilot is there to assist the primary pilot, not be that primary pilot all of the time - even if in emergencies a copilot can take over. F

The point is that a copilot is there to assist the primary pilot, not be that primary pilot all of the time - even if in emergencies a copilot can take over. Frankly - if you're asking for emergency "landings" I'd say modern driver assists are probably up to the task. Most have a pretty decent chance of bringing a vehicle to a safe stop. And if it's an emergency, and the primary driver cannot do so - then the currently still inevitable unreliability isn't much of an issue - it's still much, much better than nothing. Copilot isn't a bad name change. Not that they'll ever do it.