Why should we use anything at all? Aren't we people ourselves, who, you know, behave like people, without being taught how?
Ok, what does this mean when pretty much all people are taught to be people by the generations before them?
We throw out a number of feral children and see how they grow up in the wilds? Doesn't sound very ethical.
Same reason we play with models: it’s easier to understand through analogy, with the familiar cast unfamiliarly.
Why should we use anything at all? Aren't we people ourselves, who, you know, behave like people, without being taught how?