The FAA describes taxi, takeoff, landing, and operations other than cruise flight below 10,000 MSL as critical phases of flight because of increased risk. The aircraft is closer to the ground, other aircraft, and hazards such that prompt, correct responses are essential to the safe outcome of the flight.

Any equipment on the aircraft can and will fail. Becoming dependent on autoland — not a worry on most general aviation aircraft — is terrible risk management. Every pilot must maintain hand flying skills. Automation is nice and reduces workload, but the pilot must actively manage it.