It is not a function of lack of intelligence or ability to learn. Letter reversal in writing can be one symptom of dyslexia, but this does not mean that every child who reverses letters is dyslexic.In fact, it is very common for young children to reverse letters when they are first learning how to write.t is not a function of lack of intelligence or ability to learn. Letter reversal in writing can be one symptom of dyslexia, but this does not mean that every child who reverses letters is dyslexic.