You generally know when someone asks you to do something- am I more writing, or am I more editing? The editor is the best metaphor for your job.
Where there are low consequences and you have very low confidence in your own opinion, you should absolutely delegate.
Your goal over time is to use less red ink every day.
The job of an editor is to ensure a consistent voice.
Don't accept the excuse of complexity.
The companies I have traditionally seen do best over the long term had lead investors for their seed rounds