What if Chocobo Companion was Replaced with a Trust System?

[UnrealTai]

Not sure how it would work..,
Unless they're invisible to all except for buffs on you're person to let others know your using them.., since i don't know how much usage they'd be each time they're called out.<interesting idea.., though the question I have, like I said.., is how this will affect things server wise.>
by which I mean they could end up being Glorified DoTs/HoTs like Esteem.

FFXI already does this exactly like OP asks and it works just fine. If not one of the best and only reasons to go back to XI

Its actually where trusts even came from

Spoilers. Not really. XI does it and no one considered it spoilery at all