Could anyone explain their philosophy on how children, say 6-10 years old, are graded for their Kyu exams in contrast to adult testing?

I know each dojo or organization is different, but children obviously have less control of their body, and their Kata, Kihon and Kumite are usually not at a level that an adult would be required to demonstrate for promotion.

For example, a child's back stance could be off during their kata, or the child keeps coming up out of a front stance during their kata. The child may pass the examiniation, but an adult would not.

I would appreciate any feed bac