Oh, I agree entirely that it's straightforward when we're looking at different ranks between adult and youth. I misread your previous post, then. I think we're on the same page.Yes.
The standard is set for youth blackbelt. You test and if you meet that standard....you are awarded a youth blackbelt. You rank above Brown but below Adult Black Belt 1st Dan but you are still recognized by the organization as a black belt.
Let me add I could see the conundrum of creating the standards...but once they are set it should be straightforward.