Worldbuilding has a Sandbox section mostly for newbies who are not experienced enough to directly ask on the main site.
I have tried myself and it was a nice experience. As a lousy "world builder" instead of downvotes and close votes, I received constructive criticism that helped me shape my question so that it become good enough for the main site.
Is there such a section on Meta Stack Overflow? I am talking about having a section that is dedicated to helping users ask decent questions, not this one about checking technical features.
I tried locating one and did not even find a discussion about such a thing.
My assumption is that a Sandbox might reduce the friction between experts and newbies if marketed properly on account creation, first questions posting, etc.
Edit to address closure as duplicate
This discussion is not about SO as a coding service. It is about helping users define their questions in a way that's good enough for SO quality standards. It would also help newbies avoid the downvotes/close votes storm from the main site.
While the concern issued in the comments are valid (i.e. scalability issues), I still think this is a valid discussion.