From birth, a horse is a full faculty learner. Because of this you can start your interactions with them very early on. But keep in mind, just because they are little, doesn’t mean they won’t remember. The things that you teach them when they are young will stay with them forever. So don’t plan on ‘changing your program‘ when they are big enough to ride. You may find that you have to retrain them around some bad habits that you allowed to develop early on. A few minutes here and there is all that is required, but make them count. Try to keep your horse curious, calm, focused, and trying. Give them something new to learn each session. This will help to create a very strong bond between you and them. And always remember, you are raising a partner and friend that you may need to rely on someday. Your job is not to spoil them, but rather be a good leader that they can rely on too. Have fun with your horses!