Sir, I do not completely agree with you. People take milk from Cow ONLY after the calf drank it. The Cow will not give milk to anybody until its calf drinks. As for plants, if we eat a fruit or a leaf, it is not killing the plant. Even if you pluck a fruit, the plant is still alive. Lot of vegetarian stuff does not involve plant killing. Again I am not saying this is 100 % sure and that is where I partially agree with your opinion. Also it is true that vegetarianism evolved after non-vegetarianism only because man learned to be civilized as he evolved. There is difference between a lion or a tiger and a man.
