Originally Posted by HowlerKarma
18-19 is quite typical, according to DD, and this makes complete sense to me in light of her peer cohort's birthdays over the years-- she is a full 3 years (and in some cases 4) behind the "typical" students.

Late kindergarten entry becoming the norm is to blame, I suspect.
Not according to Study: Kindergarten ‘redshirting’ less common than previously reported
The practice of “redshirting” kindergarten students by delaying their school entrance for a year is not as widespread as previously reported, according to a recent study from the University of Virginia and Stanford University.

About 4 percent of children delay kindergarten, the study found, based on an analysis of national longitudinal data that tracked more than 10,000 infants from birth in 2001 through school entry.

Earlier studies and news reports have estimated national rates between 5 percent and 19 percent or even higher.

The redshirting rate is higher for boys (5 percent compared with 2.5 percent for girls), for white children (6 percent compared with less than 1 percent for black children), and for those from wealthy families (6.4 percent for the wealthiest quintile compared with 2.3 percent for the poorest quintile).

"To see what is in front of one's nose needs a constant struggle." - George Orwell