It has nothing to do with newbies or oldies, bad pilots or good pilots (aviators or whatever you like)
It has to do with the mentality of the person. This is only one piece of the puzzle. No one is perfect and the aviation system is structured and evolved like that. There are gaps in performance, skills and knowledge but that's normal, it is accounted, and aviation system is based on probability. (I hate it, but that's how it is)
But one has to expect from himself to improve. Improvement means following Procedures and knowing why, researching about new procedures actively and not passively, learning from errors and discussing them, studying your stuff and the list is too long. If you love it, you know it. It's a tremendous amount of information in the manuals, books, Internet, manufacturers magazines etc etc etc
Any new pilot will learn in the beginning to use maximum automation, because that's how it works. Automation came to offload the workload, to increase the capacity.
However the difference is how YOU spend your time when autopilot is engaged, versus how HE spends his time. Treating this gentleman as a human is the key, everybody involved in aviation knows it, basic stuff. Instrument scan means scan, not staring. The point is that this new pilot over time, should switch to basic models of flying. If not, the training department is there to show.
High reliability and low probability of automation errors have made us overreliant and overcomplacent. But you are there and you know it. Do something to revert it.
Anyway there are a lot of topics here discussing this issues.