 Could that be good news for the future of the religion? Well, it depends. The data show that up to 30% of children of intermarriages were not raised Zoroastrian. And when you cut an already small number by another third, well, it's not a promising trajectory. On the other hand, Nazanin's study also revealed that when the parent who isn't religious gets involved in fostering Zoroastrian identity, it can make a big difference.