I think everyone in the world should make a coin with the same supply. That would be more legit than working for another mans supply... Or have 1 coin we all earn at the same rate upon creation of supply.
First of all, only a few people in the world are capable of creating their own coin and most of them are not even aware of the existence of cryptocurrency. Everyone owning a coin? That's absurd. Who will support your coin if everyone thinks the same way as you? Second thing, demand is necessary to determine the value of a coin not only supply. Lastly, your coin won't be able to compete against top-performing coins.