There has been much talk recently as to whether manned aviation is dead, or as to whether today's aircraft will the last ever built from scratch for manned flight. There is a very good measure of when automated/computer systems will be good enough to take over, and this is no where near to being possible yet. A very good measure of when computers can think and learn/decide for themselves is when one can successfully iron a man's shirt from start to finish with no help (many boffin types see this as a reference).
Most of us can iron a shirt very well, while watching TV and holding a conversation, yet there is no computer in the world can that even begin the very complex task of ironing a shirt (assuming the shirt can be any cut/size/material or dry/damp/wet).
If we consider that ironing is beyond a computer, then it must surely be folly to let them lose on a battlefield, where split second realistic and life saving decisions need to be made!