Conversations around the family dinner table during the coronavirus crisis have taken on incredibly high stakes. Deciding whether or not the kids can see Grandma and Grandpa over the weekend now requires research into the latest physical distancing guidelines and any chronic conditions they might have. Deciding whether or not to play baseball, basketball or soccer in youth summer leagues requires a serious calculation of the risks and rewards, as well as a working knowledge of all of the precautions that coaches and venues will take. Some families are agonizing over whether to let their young children go back to day care. Some already are weighing what to do when—or if—schools open in the fall.