The design of a Rubik’s Cube is clear. The design of a human is much less obvious. Here are several design factors that control how we act.
So often, well intentioned people have tried to change our design, calling it bad. Remember all of the years when left-handed kids were bullied by teachers to write with their right hand?
While I think we are mostly over that hurdle, there are still many other design factors that are not broadly understood, and therefore well-meaning people try to make us be contrary to our design.