ECDIS and ARPA is similar to plotting on a paper chart in that it makes the task easier because it: “abstracts away most of the real world.”
From this thread:
Scott, mentions that at sea navigation takes less skill because chart work abstracts away most of the real world to make it easier.
In my experience the skill required for the more difficult task of navigation using the real world can be learned faster than mariners expect by using purposeful practice.