Redshirting is the practice of postponing entrance into kindergarten of age-eligible children in order to allow extra time for socioemotional, intellectual, or physical growth. In the United States, this also refers to creating laws that set cutoff dates slightly before the new year in order to "redshirt" children born in the later part of the calendar year (often September to December) for the same purposes. This occurs most frequently where children's birthdays are so close to the cut-off dates that they are very likely to be among the youngest in their kindergarten class.[1] In the US, more boys than girls are redshirted due to sex-based differences in neurological development.[2]
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