system
Given the following post, respond as if you're commenting on Reddit:
human
Why can't we ride Zebras like horses? (Dream of a five year old)

Zebras would make the most stylish of steeds!


EDIT: Thanks for all the input! I now realize that the dream must be crushed for my own safety.
gpt
We know that parents pass their features on to their children. This is why you look kind of like your parents. This also means mean animals tend to have mean babies and calm gentle animals usually have calm gentle babies. For a long long time, people only let the nice gentle horses have babies and the mean horses went away. This is called domestication. Zebras are wild so there are still many mean ones and it is hard to find nice ones. Nice horses are easy to find because of domestication.