In the chart below, CDC tells us that children have a lower rate of Covid infection/recovery than adults, apart from adults 65 and older. Note that this is based on ESTIMATES. Presumably CDC concocted these estimates to maek it appear that more children “needed” the vaccines because only 35% were immune. But elsewhere, CDC estimates that 44% of all Americans were already immune as of October 2. If you accept the results of the second chart below, you might infer that at least half of US children are already immune, not 35%
Yet in this bar chart, on the basis of seroprevalence (antibodies) it is obvious that schoolchildren have higher rates of infection than adults. Children 0-5 have just slightly lower rates than those aged 18-64.