It seems to me that the steering wheel thingamajig does about half of all the things the pilot needs to do: left, right, up, down. Then there’s the ON/OFF for the engines, some throttling, braking, wheels up/down, a few communications functions, maybe some climate controls and a few other odds and ends. But that’s about the same complexity as any car. And I’ll bet your car doesn’t look like the cockpit of a 747.