True, there are drones that can auto land on aircraft carriers these days. However extremely high total loss rates and bad crash statistics of bigger military drones seem to indicate that human operators are still needed for unusual situations and human operators with not only systems knowledge but pilotage skills and aviation background knowledge. The military tried to convert non pilot ground staff to drone operators to save money.
AFAIK with big problems like clueless operators wanting to do steep turns at high altitude and stalling ignoring known icing conditions and losing their drone and such.
Therefore especially for passenger aircraft I see a need for human pilots, as in
at least two of them on board, for some longer time to come. Just wait for the first drone crashes within the public view and how that affect will their acceptance. We are observing this with automated cars already.