Gaggles or giggles of girls

by which I mean the early-teen variety, and sometimes including boys as well, should not be allowed to gather in groups in coffee shops. Do these young people ("Oh, my GAWWDDD!!!" "Oh, my GAWD!" "OH. MY. GAWWD!!!") not realize that some of us have abandoned our cherished spots in libraries, where no one says "Hush" any more, and fled to Starbucks or The Second Cup to get our reading and our writing done?