Is it ok to ride a 2 year old horse?

It is not advisable to ride a 2 year old horse. Horses are not typically physically and emotionally mature enough to be ridden until they are at least 3 years old and some breeds may need to wait until they are 4 or 5 years old. While some two year olds may appear able to carry a rider, the likelihood of injury to both the horse and the rider is high, not only during the riding but also in the training leading up to it. It is important to wait until a horse is physically mature enough to handle the weight of a rider and emotionally mature enough to be trained and handled safely.