The amount of times I've been on a Realm all day, built a wonderful building only for me to come back the next day to see it completely obliterated, with every last trace of it left out of existence. All my stuff will have despawned, and I'm basically starting anew. Sure, you could say I shouldn't be playing on public realms, but i shouldn't have to not play on public realms because of a few virtual-terrorists who get pleasure out of destroying innocent peoples' hard labour.
Anyway, to the point. Why on Earth does Minecraft Bedrock not have realm backups?? I'm pretty sure Java does, so you can all yell at me for not picking Java over Bedrock and all that jazz, but that's outside of the point. The point is, MCPE needs automatic realm backups. It's an absolute necessity. Especially with Bedrock's general audience of younger people, due to it being available on all current-gen consoles and mobile. How about, every hour, a backup of the realm is created, and is available until 50 or so backup spaces are taken up, then it starts overwriting the older ones? Please, please add this feature. It's absolutely vital and will make people feel much more comfortable playing on public realms.