Why don't pilots always use autoland?
There are a number of reasons why pilot don't use autoland all the time, even if the airport and aircraft are equipped with the right equipment.

To name the two most important ones:


Pilots need to practise their flying technique. If they would always
fly autopilot, they would lose the skills to fly. Skills that they
need when the autopilot does fail. There are phases of flight where
it is better or even required to let the autopilot do its job, but
landing is one the things pilot are allowed to and need to be capable
of doing themselves. Of course autoland needs to be practised as well.
Auto land requires very accurate ILS guidance. Even if the airport is
equipped with calibrated ILS Cat IIIb equipment (required for
autoland), the signals will be degraded by traffic that is operating
near the ILS antennas. Under low visibility circumstances, when
pilots cannot land visually, traffic spacing is increased and ground
vehicles are not allowed anywhere near the ILS antennas to ensure the
best possible signal quality. This is a standard part of the Low
Visibility Procedures (LVP) of all airports. The downside of this is
that the capacity of the airport is reduced. If autoland would be
performed while there is no ILS signal protection, the effects can be
spectacular at best or fatal at worst.



Photo by BFU, incident report here