Ok, just hear me out SE...

[Metalwrath]

As funny as it would be to see my whisper go mount and flying chair attack enemies i dont see it being very practical.Lorewise a few of them used in story would make sense but apart from that they are just there as bonus cosmetics.I can see a justified argument for the likes of the amaro mount but it would like cause arguments among the commuity then over not having barding for them.Then the devs having to design all the current barding for amaros etc which wouldnt happen ever and if it did would massivly divert the animation team from priorities like much needed crafted primal weapons this expansion.

[CrimsonGunner]

they haven't given a summoner a proper glamour system and there are way fewer primals then mounts and the pets have really limited action unlike the companion and his different stances.
so do you really expect SE to make a good companion glamour system based on mounts then?
i'm not trying to be disrespectful but i highly doubt that SE will be able to do something like that and even if they did ,it might be as bad as the summoner egi glamour system.

[Bacent]

They would have to make all the choco fighting Animations for lilke nearly 100 mounts? Also if there was only selected few (cant imagine the bed Mount fighting) ppl would Start complaining why 'their' Mount cant be a companion

There's over 150 mounts.

[Berteaux_Braumegain]

Gib Amaro companion.

Chocobo, Amaro, and Felyne. That way I can have my own light party to do Shared FATEs with.

[Lukha]

This could work on a limited basis, if they did a few at a time and kept it to the mounts that would make sense. And it might be a lot of work, but not so much as having to do every mount individually, since we have a lot of mounts that share a model, and which share a model with mobs and so should already have at least part of the work done.

For example, the primal ponies, the unicorn, Nightmare and the black and white pegasi are all the same basic horse model, and the pegasus appears as a mob in the last few floors of HoH. So depending on how they went about it, they could have ten companions for the animation work of one.

[SilverObi]

This is a perfectly feasible suggestion if they kept it restricted to mounts that share models with monsters that already have attack/casting animations. Change the name of abilities from Choco <x> to Companion <x> (obviously Beak can be changed to Bash or something) and you'd be set.

[Daermon1180]

While being able to have any mount out for combat would be neat and all what I really want is the ability to tie an orchestration roll to a mount somehow so that when I ride it that song plays.

[NessaWyvern]

What would also be fun, is fighting while riding on the mount. Not sure how I'd work, but it would be fun, is all.

[Fredco191]

I would love to have my Bear mount fight alongside me.

[Alucard135]

Fat chocobo stomp!