A tapestry of style, creativity and highly coveted party invites awaited the well-heeled elites of the world, as the established A-listers were joined by up-and-coming stars at the recent return of the fashion weeks of Paris, Milan, London and New York. Together, this “big four” is the fashion industry’s ultimate annual extravaganza. Before the pandemic, an audience of 100 or more congregating in a closed space was normal for a runway show. Today that idea seems alarming to many for whom the pandemic has recalibrated their acceptance of crowds. In February 2020, the first fashion season after the outbreak of...