I never liked the FF11 interpretation of DRG and I hope the FF14 version never gets a pet, wyvern or otherwise. The FFTA breath attacks also struck me as a bit odd but I'm pretty indifferent about those.

Regardless, aren't the dragoons in this game members of a faction that's rather fanatically anti-dragon? I've not done more than the initial DRG quest but they appear to be from Ishgard no? I feel having any severely dragon-like aspects, such as breath attacks or makin' nice with a little dragon buddy would not go over well with these people.