Why there isn't just one language?

Because then the world would be plain and boring! If there was only one language, people wouldn't have codes, and people would lose creativeness. With endless amounts of new languages it gives people a excitment. Everyone has a time in their young childhood to make new Words, doesnt mean they're enlish, or french, or Italian it's they're language, it starts their independance and they're start to a great life.