Trademarks help the user. If I buy a can of brown sludge I want to know it’s sold by the Coca Cola company. If anyone could sell their stuff as “coca cola” tha

Trademarks help the user. If I buy a can of brown sludge I want to know it’s sold by the Coca Cola company. If anyone could sell their stuff as “coca cola” that would harm me, the consumer, as it takes information away from me.