Knew you meant it as a joke but i thought it interesting to share that Fighters don't have a simple "start" button, here's a F-16 startup sequence for reference.
Most of that isn't involved in actually starting the plane.
They are things that would be good to have done to fly safely. Something analogous to turning on and tuning the radio in a car. You can absolutely start the engine and drive the car without doing that.
Ejection seats often cause career-ending musculoskeletal injuries to the lumbar spine and hips. It's is a very violent way to leave an airplane, but much less violent than the alternative.