September has always been an exciting time in Chicago, when the social and cultural life reawakens after the languid days of summer. Many venues and institutions have been closed since early last year, so the re-openings and season openings are even more than ever welcome. The kicker is that as of August 20 masks are required in indoor public spaces, and the League of Chicago Theatres has said that in addition to the mask mandate, patrons will be required to show proof of vaccination to attend in-person events. “The show must go on,” as they say, so wearing a mask and showing proof of vaccination seem a small price to pay to keep Chicago’s restaurants, entertainment and cultural institutions open and available. I hope you agree.