Many countries are considering following Australia’s lead in banning under-16s from social-media platforms. The idea is popular—and given the tragedies in which social media have played a role, understandably so. But our leader this week (backed by a longer report) argues that a ban would do more harm than good.

In our Culture section, we’ve prepared for St Valentine’s Day by examining the mismatch between the online world in which many people seek love today and the physical one our brains have evolved for. Two recent books offer insights into modern intimacy.