I initially set up my daughter's vivofit jr under my account signed into the app on my wife's phone. My wife got a new phone and signed into her account on the app and started to add my daughter when we realized the mistake. My wife and I are now administrators of two separate family groups. My wife has tried leaving the new family group, but the app says to remove all children profiles first. We just can't find any way to remove child profiles from within the app.