SE should add chocobo digging like it had in ff11.
I think it should a little different than how it was in ff14. Instead of having a secret digging level, the chocobo digging level will just be the rank of the chocobo (1-10). Adding this feature could accomplish two things.
The first thing chocobo digging could add to the game is an additional way to level your chocobo. The xp could be a bit more substantial for digging, maybe 500 xp per dig?
The second thing chocobo digging could provide is an overlap with gardening rewards. Not everyone has access to an FC house and/or gardening. By putting some of the gardening loot on the chocobo digging loot tables, everyone could have the potential to dig up items they might not be able to grow. Obviously the very rare and expensive gardening mats would be very rare rewards from chocobo digging.
This could also tie into chocobo breeding in the future where breeding catalysts can be found while digging.
The system could utilize a new type of "digging" greens that you would need to use while mounted. You would be able to dig anywhere as long as you had the "digging" greens to consume. Bump for support!