Suggestion: Add the ability to disable autosaving while playing Minecraft at least on consoles, and add an option to exit the game without saving.
This was possible in Minecraft: Xbox One Edition and I miss it now:
I can imagine this feature being less important on a pc as copying a world is probably fast. On the Xbox, if you have a large world then copying takes quite some time. What typically happened on the Xbox One Edition is that we played and near the end of an evening we were getting tired and started to fool around. Then one person usually said: 'from now on, don't save anymore, let's for laughs destroy everything before we all quit, and then do exit without saving'. (Lol, it was not literally said like this, but this is what it boiled down to). Now imagine that you first would have to copy the world, wait for that, and then have the fooling around session, it kills the spontaneous fun. Same argument for the scenario where a friend visits you, sees Minecraft on your tv, and wants to try it out. Now you have to say 'No, wait, let me make a copy of my world first in case you mess up.'.
On a pc you probably play it behind a desk and are very dedicated to the game. Playing on a console, in the living room, while sitting on a couch for the tv there are other things going on as well. People at the door, a pet jumping and knocking over a vase, an oven that beeps. Sometimes you have to switch your attention to something else immediately. On the Xbox One Edition, if you then found you drowned because you where underwater when the real life crisis happened and your stuff despawned you could just exit without saving. We saved our game each half hour. If we saw that another player was dying we asked what happened and used exit without saving and restarted if we all agreed on it. Everyone then looses half an hour work. That is a penalty for dying, we try not to die because of it.
Somethimes we want to experiment with game mechanics. It takes ages to get vilagers where you want them and when you have set that up you want to try different things, like for instance, how to get them automatically in a minecart. If you fail they escape. If you can exit without saving you can rapidly try something else. Now you have to make a copy for each attempt.
On a pc there is probably near unlimited storage for worlds. On the Xbox we can't make that many copies as our world is big and space allowed for Minecraft is limited. We also can't export worlds to usb drives on the Xbox.