Children and adults do differ in their abilities with different modalities, but teaching the child/adult in his best modality doesn‘t affect his educational achievement. What does matter is whether the child/adult is taught in the content‘s best modality.
"Who are you?" "I am many things—a villain, a mystery, a force to be reckoned with." "No. I asked who you are, not what you are." "So there's a difference then?" "Yes." "Then you don't get an answer. I lost the privilege of an identity a long time ago, Highness."
My favorite types of writing are personal narratives. The best personal narrative I wrote was my senior year and it was about how my grandparents had a huge impact on my life and how they practicality raised me and turned me into the person I am today.