The South Korean cafes grappling with students who…

[ad_1] Juna MoonBBC KoreanReporting fromSeoul, South KoreaBBCThe 'desk' of a 33-year-old developer in StarbucksIn the affluent Seoul neighbourhood of Daechi, Hyun Sung-joo has a dilemma.His coffee shop is sometimes visited by Cagongjok, a term for…