I am equal to a baby and to a hundred year old lady. I am equal to an airline pilot and a car mechanic. I am equal to you. You are equal to me. It's that universal.
Except that it's not.
How can we say nobody's perfect if there is no perfect to compare to? Perfection implies that there really is a right and wrong way to be. And what type of perfection is the best type? Moral perfection? Aesthetic? Physiological? Mental?