Redshirting is common around here, if the anecdotes I hear are anything to go by. And for my DD8, it seems to be working in her favor. We skipped her to 4th grade, where she's around kids up to two years older. So far, that seems to be a better social match, and saves us from having to skip her twice.

Check with me in five years, when we see whether a second skip was needed anyway in order to keep up with her intellectual growth.