I've no problem with cosmetic pets, maybe even an occupation "pet tamer" that can tame wild animals for the purpose (and provide them to other players).
This could extend to taming animals to use as mounts and pack animals maybe, replacing or expanding upon the duties of the stableboys to sell those.
Another profession might be needed to create petfood, though this could be in a second phase (introducing dietary requirements dependent on the type of animal, I doubt a zerx mount would like concentrated bales for food :) ).
But for the reasons Marelli mentions, combat pets IMO aren't a good idea.
This could extend to taming animals to use as mounts and pack animals maybe, replacing or expanding upon the duties of the stableboys to sell those.
Another profession might be needed to create petfood, though this could be in a second phase (introducing dietary requirements dependent on the type of animal, I doubt a zerx mount would like concentrated bales for food :) ).
But for the reasons Marelli mentions, combat pets IMO aren't a good idea.