This is a trick question. Everyone who has bitcoin SHOULD run a bitcoin node. Do you have to? No. If you have a small amount of bitcoin, you may not want to run a node, but that means you are trusting someone else to tell you how much bitcoin you have. That's OK, but...
Who Created Bitcoin?
Nobody knows who actually created bitcoin. It was created by a 'Satoshi Nakamoto'; a nom-de-plume for either a person, group of people, or nation state. All we know is that Satoshi Nakamoto was last known to be active in 2011. In their final communication, Nakamoto...