My DD had performance anxiety about reading, and it took her all the way to age 5. She would read the odd word or two from signs when we were out and about, but that was it. I finally sat down with her and discussed all the ways that she was so far ahead of me at her age... except one, because I was reading to my mom when I was 4. She read a book to her mom by the end of that week. Shortly thereafter, she was reading aloud to her pre-K class.