Why should you avoid kicking a horse during its first rides?

Kicking a green horse during his first rides is one of the most counterproductive things a rider can do, and understanding why requires understanding both how horses process sudden sharp pressure and what the first rides are actually designed to accomplish. The instinct to kick when a young horse feels unresponsive or hesitant is natural — it is what most riders have been taught to do when a horse does not move forward — but applied to a green horse in his earliest ridden experiences, kicking creates problems that take far longer to fix than the momentary unresponsiveness it was trying to solve. The first reason not to kick is that a green horse has not yet been taught what leg pressure means. During ground work, the horse has learned to respond to rope pressure, body language, and perhaps a light touch of a training stick — but a leg squeezing or thumping against his sides while carrying a rider is a novel sensation with no established meaning. When a rider kicks a horse that does not yet understand the leg aid, the horse does not think move forward — he thinks something alarming has contacted his side. The most common responses are a startle, a jump sideways, a kick out with a hind leg, a tense hollowing of the back, or a general increase in anxiety that makes the rest of the session harder rather than more productive. None of these responses are disobedience — they are honest reactions from an animal that has been startled by something he does not understand. The second reason is that kicking establishes an incorrect threshold for the leg aid from the very beginning of ridden training. A horse that is introduced to the leg through kicking learns from his first experience that leg pressure is loud, sharp, and something to brace against or react to defensively. Teaching a light, educated response to subtle leg pressure later becomes significantly harder because the association with leg contact is already colored by that early experience of alarm. Horses trained with quiet, progressive leg aids from the first session develop a sensitivity and responsiveness to light leg contact that horses kicked into movement in early training often never fully achieve. The correct approach to forward impulsion in the first rides is to begin with the voice command the horse already knows from longe work, followed by a light leg squeeze if needed, and to use forward movement provided by an assistant on the ground to support the horse until he understands that leg pressure means forward. An assistant walking alongside or ahead of the horse creates forward movement that the horse can follow while the rider applies and releases quiet leg pressure, building the association between leg contact and forward movement through repetition and release rather than through the startle-and-react cycle that kicking produces. As the horse becomes more confirmed in understanding the leg, the rider can progressively reduce the assistant support and increase the expectation of response to a lighter aid — always building from quiet to firmer rather than starting at a level of intensity that the horse training does not yet justify. The horse trained this way arrives at more advanced work with a forward, sensitive response to light leg aids that makes everything from collection to lateral work to lead departures easier and more precise than it ever becomes in a horse whose relationship with the leg began with kicking.