[Butz]

Dustari had a stable when horses first came out.
Arin Tayde was the assistant there, however, the owner of the building was not really into it, and it eventually fell apart.
You could always have kingdom run stables, but then you have problems with the following.
a) Someone from the stable has to be around for you to get your horse/drop off your horse.
b) Someone from the stable has to be around to feed the animals.
c) Trustworthy people need to want to do it, and well, since we don't even have postmasters and/or postpeople in most cases, well....