User blog comment:ISharkyShark/My Opinion: New Creative Inventory and Pocket Edition Recipe Book/@comment-28228185-20170822212107

The new Creative inventory will acually be helpful when new blocks are added, the we can figure out where they are. Also, it will probably help new or younger players.

The Recipe Book being non-toggleable? These are Beta builds. It may be either a bug, or Mojang is still testing it. It will probably be toggleable in the future.