Hi all, I know nothing about Minecraft and need an assist. My 8-year-old has been playing Minecraft on his iPad for over a year and built up a ton of worlds but I only just realized he never signed in. It works fine so far, but to have access to Marketplace and other features he needs to create an account and sign in. https://guidedhacking.com/

Does anyone know, in doing so, in creating an account on that iPad, will he lose all his worlds and have to start over new, or will they all be there? It feels like the stakes are VERY high and he's anxious so I've come here for help before I mess it all up!