Kids with dyslexia enter the classroom with a set of unique learning challenges that neuro-typical kids don't have to worry about. That's where accommodations come in. Accommodations are variations in how the child is presented with information, test-taking or writing and other tasks in the classroom.
There weren't any huge red flags that would have indicated my daughter had a life-long reading problem. Except that by the first grade she wasn't a strong reader. My son wasn't a strong reader until the 3rd grade, and then he began winning medals for reading, so that didn't concern me much.
I don't recall being a strong reader until I was older either. I can devour a book in a matter of hours now.
Nobody in our family had been diagnosed with dyslexia, and I didn't know the "signs" to look for.