Autoland is already quite safe. However it requires special procedures on the ground to ensure the ILS signals are of sufficient quality, and so it is normally

Autoland is already quite safe. However it requires special procedures on the ground to ensure the ILS signals are of sufficient quality, and so it is normally only used either in inclement weather where visibility is to low to trust human reaction times, or as a monthly system test with a pilot ready to take over in conditions suitable for a fully manual landing (in which accuracy of the ILS radio signals cannot be assured as ATC is not making sure other planes stay sufficiently far away from the path of the radio signals).