ELI5 why do some brands include the ® and ™ symbols on their products, while others do not?
As an example, I can point to Red Bull, which has a small ™ symbol next to the red letters; NonStop Energy, which has a ® symbol; and Monster Energy, which doesn’t have such symbols in the product name. Why do some brands put this right on the front label, while others only include it in the product description on the back?