Animal training and taming is unnecessarily binary. You either have enough skill, or you don't. Colonists with low skill but passion are particularly hopeless.
Please allow training and taming animals with less than required skill. The chance would be low, but people would be able to train. When you fail training or taming, there would be a chance of (social) fight with the animal or another unpleasant effect, like the whole herd running away for some time/distance.