What is a young horse rider called?

There isn't one specific term for a young horse rider. Here are a few options depending on the context:

General terms:

* Young rider: This is a broad term that can be used for anyone under a certain age limit, which varies depending on the equestrian discipline.

* Junior rider: This term is often used in competitive equestrian sports.

* Pony rider: This is used when the rider is specifically riding a pony, often associated with younger children.

Other options:

* Jockey: This is used specifically for riders in horse racing.

* Equestrian: This is a more general term for someone who rides horses, but doesn't necessarily imply age.

* Beginner: This can be used to describe a rider who is new to horseback riding, regardless of age.

The best term to use will depend on the specific situation and the age of the rider.