When one is diagnosed with mental retardation/developmental disability, is this brought to their attention?

Question

When one is diagnosed with mental retardation/developmental disability, is this brought to their attention?

Answer 1

This diagnosis is generally made in childhood, and the parents are told.  They will decide how to present the matter to the child.

If somebody doesn't find out until adulthood,. I imagine the doctor will tell the person, if able to understand; as well as any caretakers.

I understand that school personnel sometimes make a "diagnosis," but they are not physicians or psychologists, and so the diagnosis is unofficial.