Displayed/Downloadable/Public Worlds

We have lacked of World Saving, Why Do we have to keep it on our storage? Why not in our Minecraft Accounts? (Need Wifi or Internet) Please let us Display or downloadable our worlds in our Minecraft Profile (Must be Displayed Publicly or Friends only) and to update your world you need Wifi Or Internet, Please Add This To The Game, This will make World Saving Much More Better And Secure. (also Add password to delete your worlds if you want to.) PLEASE ADD THIS TO BOTH BEDROCK AND JAVA PLEASE