Add an action command idea, take a helmet action,

hold the helmet, look around the landscape, wear a helmet in battle, / bow and /kneel command should also increase the action taken to take the helmet.

Like the gta5 riding a motorcycle, you can take the helmet off

I have no idea what you are proposing. Please expand your description, without referencing other games that may be unfamiliar.

I think he's proposing that characters who have their helmet skin active should remove their helmet and hold it under their arm when they perform certain emotes and return it to their head after. It would be a nice touch but I'm willing to bet there are some pain in the rear programming reasons they haven't done it that way.

The problem is that a lot of our "helmets" are not helmets at all. They're hoods, hats, horns, glasses...

I have one white charr thief that uses the "blood on the mouth" medium headgear from Halloween. It's his normal face, save for the blood around his mouth. Can you imagine him casually just pulling the blood off, looking around for a moment, then putting it back onto his face?

this is easily done but your character will be bald, that's the one thing Anet never solved.