My mother intentionally never got us properly set up for tribal membership because she didn't want us anywhere near the negative aspects of the culture. (I'm also not even sure if I could qualify despite tracing my ancestry back to the baker rolls.) And she didn't even grow up on the rez, just in Appalachia. It's been a blessing and a curse.
They're teaching it in reservation schools right now.. hopefully in another 15 years there'll be an active speaker community!
It’s similar to native Hawaiians. Despite significant effort, that culture is being drowned by tourists and the massive non-native population influencing them. Sure, you can celebrate the culture and the language, but it doesn’t even begin to give you a glimpse of what it could have been without European invasions.