Youre all insane!: Locals incensed as line culture invades the Upper East Side and its all over frozen yogurt

Downtown line culture has officially invaded the Upper East Side — where suddenly everyone is losing their minds over frozen yogurt.On Lexington Avenue, the partition ropes are out, the branded cones are in place, and hungry daytrippers are lining the block while bewildered, curious residents brush past a snaking line forming near their multimillion-dollar prewar buildings, wondering what, exactly, is happening on the corner of 72nd Street.Viral Australian froyo shop Mimi’s opened its first uptown location last Thursday, and promptly unleashed hordes of twenty-somethings in sweatpants, parents and young kids willing to wait nearly an hour for a swirl.By 8:41 p.m.Monday, the line outside the new shop at Lexington Avenue and East 72nd Street stretched to the corner of East 71st, as workers tried to corral the crowd with ropes.For a neighborhood better known for white-gloved doormen, co-ops and luxury fashion, crowds are now spilling past apartment entrances, blocking neighboring businesses and filling nearby trash cans full to the brim with discarded Mimi’s cups.Founded by 26-year-old Sydney native Amber Linz, Mimi’s is already notorious for block-long lines in Soho — and the hype has followed uptown.Two employees at the neighboring Joe & The Juice told The Post the crowd has repeatedly backed up in front of their door since Mimi’s arrived.Nearby doormen have found themselves fielding questions from residents and local passersby who have no idea why dozens of people are suddenly standing outside their buildings at night.“People were inquiring, ‘What’s going on?’” a doorman at 150 E.

72nd St.told The Post.The biggest rushes have hit after school and after dinner — and groups of students even asked the store to open earlier so they could squeeze in froyo during their lunch breaks, to which Linz adjusted her hours, thrilled that “proper children” were coming in for a treat.“We’ve never had children; it’s a real locals market here,�...