I find this all so strange. I graduated high school at 16 (going on 17), and left home. I had a loving family, but it was time to leave. I got no nanny or bodyguard. I lived a continent away from home. I had a wonderful year working and experiencing life before starting college. I would not exchange that year of my life! It never occurred to me that I was "young" or not as capable as any other adult.
I know I am in the minority opinion, but today's society infantilize our young adults way beyond what is good for them, and that itself leads to a lot of conflict and our teens getting into trouble instead of learning to be contributing citizens. That year before I started college helped me to be a confident adult with higher self-esteem, and gave me a backbone.
So, if she just turned 16, maybe she can use another year of guidance. Maybe not. She may already know how to be an adult. I don't know because I don't know her. I cannot imagine having lived under parental control for another year, and am so grateful, that I was allowed my wings!