Tutorial world for new version of Minecraft

Me and my friends used to have fun just playing on the tutorial world when we just wanted to chill and have fun. So I think that they should bring this back. It would also be a more fun way to figure out how to play the game. I also think that it shouldn't just be a list of what to do. For example the medieval castle, it had potions, a nether portal, a cool design, a secret or two (I'm pretty sure), and a whole load of other fun stuff. That's why I think they should bring back the tutorial worlds.