Planes do have to do regular autolands. Something like 1 per month. Pilots generally need a lot more to maintain their skills at their peak. Autolands are actually more stressful than regular landings because you are not controlling the plane but have to be ready to take over in case the system fails. Also very often the way ATC handles you getting set up to autoland is impossible, and in fact a relatively small percentage of runways are capable of handling autolands. As an example, unless it has changed recently, Chicago Ohare which is one of the busiest airports in the US has only two runways that can handle it and they are not the normal landing runways.