One thing I would say is that, especially in corrections, if people understood their responsibilities and their rights as individuals within the system, they'd feel a lot more comfortable to identify. If identifying as an indigenous person in an institution is going to put me into the gang unit, I don't want to be there either. I'm going to say, “No, I'm not.” If the opportunity were given that would help them understand that we could start dealing with some more restorative kinds of programming to assist them to reintegrate into the community and get out of the crises they're in and deal with their issues, I think you would go a long way towards people probably being able to say, “Yes, I'm this person.”
I also agree that many people don't even deal with what their cultural identity is until they're introduced to it in a more positive way. Unfortunately, sometimes corrections might be that way.