Pony stable

In a dystopian world where pets are no longer possible to own, the rich choose to use the misplaced youth as their pets, You are a poor orphaned youth signed up for the pony stable where You are to be trained as a pony in the hopes to be adopted by a rich family. You can be: A filly - is a young female pony or horse she will be submissive A mare - is an older female pony or horse she can be submissive or dominant A colt - is a young male pony or horse he could be submissive or dominant A stallion - is a older male pony or horse is is often dominant and occasionally submissive A stud - is a male pony or horse for breeding he will be dominant