Letting kids transition before they even reach puberty is a great way to potentially ruin their lives forever. Kids are so impressionable and change faster than the wind. They instantly succumb to peer pressure and 99% of the cases have no clue what they want because they are kids. They don’t have a lot of life experience.
I know only one case where I knew that transition would have been normal at any age for him. When we were kids it would have been 100% impossible. Now we are older farts and he still didn’t transition, he doesn’t want and would have regretted the decision if he would have had the possibility to do it as a kid.
Transition as a kid should be nearly impossible and you should be put through an infinite amount of tests and visits to the doctor. Reach an age where you can be considered an adult, go ahead and schedule an appointment and transition away. Do as you please.