mamba
Legend
great approach right there ‘I am not sure what you are saying, but I am pretty sure you are wrong’…I don't even know what it is you're trying to say anymore. But I'm still pretty sure it's wrong.

Focus on the last sentence ‘in the game world the difference is that one is controlled by the player and the other by the DM, that is it’ and the rest is saying who is a PC and who is an NPC is the luck of the draw, no more.
In the world the NPC cobbler and the PC blacksmith turned 1st level Fighter setting out on their first adventure are equally important. What will eventually set them apart is what they do, nothing else