Carter cares more about what you do than what you are.
Carter was street kid before he awakened. Picking pockets, boosting car radios, shop lifting. The one constant in his life was that if you were going to get anything in life you had to take it. No one was going to give it to you.
Then he Awakened. There's still elements of that but its now less of him versus the world and now he's started developing a sense of community and the idea that his circle of trust might extend to a 'crew'. And past that to having a responsibility to help the people around him, just now that means more than helping Mrs Dominguez get home safe and carry in her groceries.