I had this one mom and she was trying to protect her son. He was young, a tween, at the time. He did not yet know of his diagnoses, but he did know that he received special help in school for some things.
There are many reasons why you should tell a child about their disability. Here’s a good one. A careless teacher left his IEP out. The class got a hold of it. And they read it. That kid was bullied relentlessly for more than 10 years.