Background: Consider a postdoc P in the field of natural sciences. P has completed her PhD rather recently and is lucky enough to be in a group where she has a lot of independence. P gets to decide what projects she can work on. P has also been told my the group leader that she can go ahead with single-author papers at some point. There is no strong expectation that the leader has to be on every single paper.
Situation:
P has never written a paper with less than 3-4 other authors, although she was always the lead author and did most of the work.
P is unsure if she is mature enough to write her own paper without making 'mistakes'.
P has learnt a lot from the past papers but has never written a paper where significant corrections were not required.
Question:
Should P wait to be more 'mature' or barge ahead with a single-author paper right away?