"As the pandemic upended life in the United States, more than one million children who had been expected to enroll in these schools did not show up, either in person or online. The missing students were concentrated in the younger grades, with the steepest drop in kindergarten — more than 340,000 students, according to government data. Now, the first analysis of enrollment at 70,000 public schools across 33 states offers a detailed portrait of these kindergartners. It shows that just as the pandemic lay bare vast disparities in health care and income, it also hardened inequities in education, setting back some of the most vulnerable students before they spent even one day in a classroom."