How are kids affected by social distancing?

One of the few pieces of good news about the coronavirus — which has caused more than 100,000 deaths worldwide — is that children, though not immune, appear to face substantially less risk of developing severe symptoms.

A decreased threat from infection does not mean that kids are protected from the impacts of the virus. Like everyone else, their lives have been upended by social distancing measures aimed at controlling the outbreak. Schools have closed, activities have been canceled and in-person visits with friends have been put on pause.

The...