There are far less plane accidents or plane break downs then car accidents or car breakdowns. If the engine stalls on a plane, you still have time and distance to glide it to a safe area. Plus everyone in Alaska has a gun or five, even pilots. Plus planes get highest priority if it breaks down and crash lands some where in the middle of no where vs a car breakdown. Unless you are US president and your car breaks down. But then you have a convoy of 5 cars and trunks loaded with enough firepower to start a small war.