...hold their kids back to help them be better leaders. I believe there was a study that showed the older kids in the class were more dominant or leaders or something, and another that showed that the leaders tended to make more money in adulthood.
Here's an interesting and resource-y article on redshirting:
Kingergarten Redshirting: How Kids Feel About It Later In Life (Cult of Pedagogy, April 24, 2016, Jennifer Gonzalez). Four resources which it links to:
1)
delay their child's entrance into kindergarten: "Academic Redshirting" in Kindergarten: Prevelance, Patterns, and Implications (Bassock/Reardon) September 2013
2)
overview of the research on redshirting: Investigating the Prevalence of Academic Redshirting Using Population-Level Data (June 2015)
3)
Academic Redshirting: Perceived Life Satisfaction for Adolescent Males (dissertation of Suzanne Stateler-Jones, Texas A&M, 2012)
4)
Multidimensional Students' Life Satisfaction Scale (MSLSS)One aspect of this research may apply also to gifted kids, to the degree a gifted child may be redshirted (or not accelerated) due to undiagnosed disability:
Of interest as well is that students with disabilities were more likely to be redshirted. However, parents who are red-shirting their children to allow them more time to mature should carefully consider that early intervention may address the child’s needs better than redshirting alone (Jaekel et al.,2015). Jaekel et al. (2015) indicated that delaying formal instruction and not providing special education services during a key developmental period may be detrimental to children with special needs, given that redshirting does not necessarily bestow an academic advantage
