This is a story through millions of years in its past to explain why humans are shaped the way we are, and millennia into the speculative future for why mechs should probably not replicate human geometry
The real issue is not mechs having heads. It’s the top humanoid design itself. Why make a war machine top heavy and having critical failure point of losing any of the joints in one leg and limbs that demand thinner armor, etc. When you make a humanoid mech or some cases a mech at all (I mean any kind of walker with any kind of bodyplan) you have already entered the “stupid n improbable territory” so why even bother caring about why it has head or not, if your aesthetics sense demands mechs.
The real issue is not mechs having heads. It’s the top humanoid design itself. Why make a war machine top heavy and having critical failure point of losing any of the joints in one leg and limbs that demand thinner armor, etc. When you make a humanoid mech or some cases a mech at all (I mean any kind of walker with any kind of bodyplan) you have already entered the “stupid n improbable territory” so why even bother caring about why it has head or not, if your aesthetics sense demands mechs.
Carcinization rears its cephalothorax again!