https://www.siliconvalley.com/2021/01/17/children-the-next-frontier-for-covid-vaccine-clinical-trials/

Twelve-year-olds are tween-agers, staring down puberty and middle school, surprisingly mature one minute and tortured by angst the next.

Some also are scientific pioneers, volunteering for clinical trials to test COVID vaccines in children. Slowly and gingerly, researchers are testing COVID-19 vaccines in younger and younger kids — even as millions of doses are pushed into the arms of their parents — with an eye toward FDA approval in the next year or two.