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I've never even heard of this, let alone had it happen to me.
As far as I'm aware this should be possible, I don't remember any version where they specified that you could not update worlds from one version to the next.
Of course, you can always just make a backup of the world and try it yourself. That would be the easiest way to get an answer.
I mean, it isn't a bad idea, I just don't think it really gives any benefit over using Wheat. It's slightly lower maintenance I guess, except for needing lily pads (which seems unnecessary imo). I would probably use this if it was added, but more for aesthetic reasons and not for food.
But I would remove the need for lily pads and just say it has to be planted on water source blocks directly. Also rice grains ARE the seed so just have it drop 2 to 5 grains and have those also be the seeds.
Please do not post wishlists. Suggestion threads should be restricted to a single idea or ideas that are directly related to each other.
There is a difference between the game trying to generate a village when generating new chunks and what the game actively considers a village. World generation is basically just the game looking at the seed and saying "I want to make a village at point X". Then it says "I'll try and make a house in this village at point A" and then it tries to do that. If things make it impossible for a house to spawn there it won't do it. Then it repeats in other locations in the Village. So if it decided to try and generate a village and got the paths and some other structures, but failed to generate houses because trees or whatnot were in the way, you would find a situation like this. At least that is my understanding.
Meanwhile an active village during normal gameplay does have rules regarding villagers and beds and whatnot.
Technically files still exist on a hard drive after being deleted. It would be extremely detrimental to the life of a hard drive to overwrite the data for a file with zeroes whenever it is deleted. What actually happens is the file exists in a kind of limbo state where you cannot see them but they exist until new files are written to that location on the drive.
There are tools to recover those files that have varying degrees of success, but I don't know any of them well enough to give a recommendation. But that's a good starting point.
In my honest opinion gates should require trapdoors in the crafting recipe
why? because gates have hinges, and trapdoors have hinges on them
it also puzzles me why they don't require iron for the hinge component, because most hinges in real life on high quality doors use metal for their hinges.
By that same logic, shouldn't trapdoors also require something that has hinges on them, since they have hinges? Seems like a stretch in logic to me, crafting recipes have always been a rough representation of the final product.
As for the idea itself, I don't care either way. It isn't going to severely impact anything but it also isn't really worth the effort to change it.
Log in should function more or less the same as it does now, except instead of logging in with the email your Mojang account is currently using you will log in to a Microsoft account that you migrate your Minecraft account to.
Because Microsoft accounts can be made with external email addresses, you can probably use the same email you currently use to play Java edition, you just need to use that email to make a Microsoft account and merge the Mojang account into it.