The Best Books of 2022, The New YorkerObject Lessons is a series of short, beautifully designed books about the hidden lives of ordinary things.Among the many things expectant parents are told to buy, none is a more visible symbol of status and parenting philosophy than a stroller. Although its association with wealth dates back to the invention of the first pram in the 1700s, in recent decades, four-figure strollers have become not just status symbols but cultural identifiers. There are sleek jogging strollers for serious athletes, impossibly compact strollers for parents determined to travel internationally with pre-ambulatory children, and those featuring a ride-on kick board or second, lessbabyishseat, designed with older siblings in mind. Despite the many models available, we are all familiar with the image of a harried mother struggling to use a stroller of any kind in a public space that does not accommodate it. There are anti-stroller evangelists, fervently preaching the