> Why would we do that when are bodies are specifically evolved for eating both vegetables and meat?
Our bodies specifically evolved for reproduction, but that doesn't stop us from using contraception when we have sex. Evolution also designed us to have wisdom teeth, but that doesn't stop people removing them.
Your argument assumes that natural selection has some kind of innate "wisdom", and that's just not true. Natural selection doesn't produce perfection or have any kind of intelligence behind it, it simply produces "good enough" (or, as we're on HN, the minimum viable product).
Our bodies specifically evolved for reproduction, but that doesn't stop us from using contraception when we have sex. Evolution also designed us to have wisdom teeth, but that doesn't stop people removing them.
Your argument assumes that natural selection has some kind of innate "wisdom", and that's just not true. Natural selection doesn't produce perfection or have any kind of intelligence behind it, it simply produces "good enough" (or, as we're on HN, the minimum viable product).