Take a look at this "letter from an eight year-old":
I'm no forensic analyst, but the grammar and syntax of that do not read like an eight year old. He understands contractions (i.e. "you're" instead of "you are") better than 80% of GL4X4. It may
have been written by an eight year old, but they were writing what they were told.
The handwriting also looks pretty well controlled for an eight year-old, and to me looks like an adult simulating child's writing rather than a child's actual writing. It looks way too controlled and consistent for second or third grader, with no signs of erasures or spelling/grammar issues.
I call BS. Not that it matters, or that letters from eight year-olds are a valid basis for a system of governance.