Drawing people is where drawing begins. It makes sense that the first drawings we make of other people look like us. We draw what we know or at least let's say we draw what we are accustomed to.
So a good drawing should look like the person or thing you are drawing? Hmmm. Too early to open that can of worms. I'll start with what drawing isn't. It isn't what we are accustomed to, it isn't floating in a specimen jar or frozen in marble.
Drawing is alive, no strings attached.