Modern commercial airliners do not land themselves without human input. Someone needs to dial in a whole bunch of parameters then monitor the instruments carefully.
Autopilots aren't infallible; they're basically glorified cruise control with three axes of freedom rather than one.
(I will grant you that commercial aircraft with ILS can land in zero visibility conditions, but that's a very long way from being able to fly themselves to an arbitrary destination without human direction.)
Understandably, commercial airliners do not land via computer because human pilots are better than the autopilots in most commercial aircraft. To say that this will always be the case, especially in an entrepreneurial software forum, is ridiculous. Autopilots will get better and better, and drone pilots are not currently as good as commercial aircraft pilots.
Because... you just argued that people are required to enter parameters, and monitor sensors, and, well, people aren't very good at those things.
Autopilots aren't infallible; they're basically glorified cruise control with three axes of freedom rather than one.
(I will grant you that commercial aircraft with ILS can land in zero visibility conditions, but that's a very long way from being able to fly themselves to an arbitrary destination without human direction.)