Emil Rustige makes his point — with a little adult help — at a Hamburg protestEmil Rustige makes his point — with a little adult help — at a Hamburg protestAXEL HEIMKEN A seven-year-old boy from Hamburg has become the leader of a children’s crusade to stop parents gawping at their smartphones countless times every day.Emil Rustige’s protest march through the city centre has prompted a generation of parents to wonder just what it is about Lady Gaga’s Instagram account, or Twitter videos of competitive hotdog eating, that is so much more compelling than their own offspring. Martin Rustige, 37, said his son’s patience had finally snapped when they took his little sister through a car wash for the fir