Tried unlocking it for my child, and it's downright impossible with parental controls. Doing it from the child's phone says it has to be done by an adult, so I installed and did it from my profile - and guess what? It didn't transfer over. Also, saying to children "you can unlock everything for free" when you're talking about a week's trial is shady and oh-so-American of you. The entire continent of Europe is rolling its eyes at you.