On a blue mat in their mud-and-bamboo home in the middle of the world's largest refugee settlement, Mohammad Selim is pacing his 9-year-old daughter Nasima Akter on her taekwondo drill.

As a local taekwondo champion in his majority-Rohingya district in Myanmar before fleeing to Bangladesh 18 months ago, Selim dreamed of making a career of his sport, but now is hoping that his daughter can instead follow that path.

He said it was impossible to teach her in Myanmar, as taekwondo was considered improper for girls and he didn't have time, but the Rohingya's flight to camps near Cox's Bazar in southeast Bangladesh has started to change his society's rules for women.