I might use translation software instead of paying some person to translate for me because that person could easily be telling me false information and I can just believe what they say, or they could not really be listening at all and just give me random things.
Advantages of using a human interpreter: You get the chance to learn a new language on your own from someone else.
Advantages of using translation software: The software is always right, is full of all words in each language, and is always on mobile devices so it can be used anywhere, anytime.