This idea would incorporate a system where you could like raise and level mounts. They would add a new craftable item Called a Stable. It would be where the mount grows up. Lets say you buy a mount or a mount is dropped once you get that mount you would put it in the stable and you would have to leave it in there for a specific amount of time with like a food and water, until it grows up. :) Also, once the mount has grown up into a rideable mount, the more you use it the faster it gets. So lets say You have a horse mount with 30 or 40 % speed increase. If you ride it for like a very long time or for like a certain amount of ingame time the mounts lvl increases and so does it stats like, speed. Also the mount is visible inside the stable so you can actually see it growing up.