World creation option: hidden armour

Make this an option within world creation, not just each player’s menus. If the world creator enables the “hidden armour” feature, players in the world can hide their armour (by pressing R3 (or the corresponding button on each system)). This way, players can still wear the armour they need to stay alive, but they can show off the costumes and outfits they’ve bought/earned.

Also, adding this as a feature to be enabled/disabled by the world creator can be useful as then the creator can weigh the advantages and disadvantages to this. 
For example,
If playing PVP:

“do I want players to know if another player as armour?” “Would this give some players an unfair advantage?”