Azur Promilia has mounts at the beginning of their launch..... Genshin does not and its already 3 years and a half. Geshin is about to get shit on again and it will get even worse once Azur Promilia comes out.
What I don't get it is, aside from mounts being a fantastic way to explore the world a little quicker, is the fact they have another way to print money. Mount skins? Sold. So many people would buy that.