I have 3 kids. My oldest, who is now 16 was reading at the age of 3 1/2, my middle son, who is now 13 did not read at all until the middle to end of first grade and my third is going into first grade and is somewhere between the other 2 kids. She reads, but not as well as my oldest. I know she will be fine as will your child. I know you said that your first grader is your oldest so you have nothing to compare her to, but try not to compare any of your kids. I know it is hard to do. I have trouble trying not to, but they all turn out fine. I just wish I could pass on my love of reading and not just the ability to read. I love to read, as does my older daughter, but getting my son to sit and read a book is like pulling teeth.
Lisa