Natives must face their twin demons
I have friends who admit, with tears in their eyes, that leaving their village was their only choice if they were to pursue their career or have a job or give their children something more than the village could offer. They aren't abandoning their culture. They are trying to span both worlds, trying to be a bridge for their children into both places.
Their children may do better in the city when it comes to educational opportunities. But they miss out on the cultural immersion that only happens when you live the life. Summer visits or going home for the spring hunt may help, but it will never substitute for living there. That's a lot of conflict for young, urban Native parents and their kids to handle.