My friend is in Australia about a year , he's student there,some political and economic problems for iranian people I mean banking sanctions almost make it impossible to change rial(official currency of iran)to dollar $,his family was searching for a new way for transaction as replacement , finally they decided to buy bitcoin and send to him after that he makes it cash.I'm not sure about other people but a lot of iranian students in europe or canada have to returne because they can not be supplied for finacial issues.