Why is old ben is not a rebel?

Old ben was never officially a active member of the rebellion. He spent his whole time since the creation of the Empire on tatooine looking after Luke. Aiding a movement us not the sane as being a actual member. But that being said Han was not even a official member of the rebellion until the second film. Which means technically only the Han from heroic raids should have the rebel tag not stormtrooper Han. But since he does that means old ben should as well.