I don’t think some of them even can be qualified as adults. After all, limit of maturity shows an upward trend since Antiquity and the Middle Ages, in line with technological developments easing the life of humankind.

COVID-19 quarantine epic looks like a very interesting experiment about inducing agoraphobia and hysterical fear of disobeying authorities. Nancy Kress in Beggars and Choosers and Beggars Ride described an eerily similar situation by means of science fiction and cyberpunk, I urge you to read it.