Furthermore, ethics is way too cultural and subjective to be taught. Even if we could all agree on macro-rules, eg. hurting peoples is bad whatever hurt they in

Furthermore, ethics is way too cultural and subjective to be taught. Even if we could all agree on macro-rules, eg. hurting peoples is bad whatever hurt they infliged, the more specifics (and micro) we become, the more divergences will arise. And as everythng, our perception of what is "ethics" will evolve.