I sit, way over, inside the fence that prefers to leave creative writing until much later; unless either of my children showed a decided drive or talent to want to write creatively - they don't .. at this stage anyway.
When it comes to drive and talent one child would rather sing and play the piano , the other child loves to design, or, debate (?) theology.
Not everyone is destined to be a skilled creative writer, regardless of that fact, I believe it will be very helpful for my children to be trained in the skill of pulling together central thoughts to write a decent research paper - should they need it for higher level education - hence our ongoing journey with PHPs writing course.
Bobs is at the stage and ability in his writing journey to need some of that instruction and practice with creative writing - if he allows me to (grin), we may end up with some interesting posts about that aspect of his learning journey.
If he says no, well ...
I'll just tell you whether I like, or dislike, the tools we're using ☺
We're about to start, perhaps belatedly, The Creative Writer, Level One by Boris Fishman which is a suggested companion course to use alongside Writing With Skill.
Samples can be found here.