>>20361378That's like saying magnemite is literally just a magnet. It's not a keyring, it a metallic teardrop-shaped creature with a key-like horn, and flexible arms that it wraps in a ring. It's not born with keys, it collects them. No, hatching from an egg with keys doesn't count, anymore than kangaskhan hatching with a baby in its pouch counts.
You should really watch the klefki special form the movie, it shows how it's more of a creature than an object.