Tauros have often been seen as a symbol of the wilderness and barbarism: as a rash, undisciplined pokemon controlled solely by passion and instinct. This, like many common folk beliefs, is completely wrong, although watching the way they charge in battle can easily leave one with that impression.
Indeed, to control one's self and surpass one's limits, attacking with great power at the price of one's own awareness, is an art in its own, and one which requires strict discipline. In isolated areas where wild Tauros are found, they train in soltitude; they are their own masters, and their bodies are the slaves. They follow strict training schedules, demanding a certain amount of practice attacks a day, and if their attack is weak or they fail to do enough they whip themselves with their own tails.
The reason they are so hard to tame is not because they are "wild" per se, but because they are so ferociously independent, and they trust no humans to train them as hard as they train themselves.
