Could you tell me if tonsils are able to be taken out how come we have them?

Tonsils: The tonsils are part of the immune system. They help you fight infections of all sorts. The reason we can take tonsils out without much concern for affecting the body's ability to fight those infections is because of significant redundancy in the immune system. You actually have more tonsils that we don't take out, like on the back of the tongue. There are also a lot of lymph nodes in neck.