All kind of the persons should be travelling in case of the personal reason or work related moving or etc if you go anywhere you do not that people language that kind of the times you must need a any person who knows you and that people language then only you realize what the person telling to you . So must need translators then only you will communicate with each person who does not your language.
If you plan to go to any other vacation or outdoor that type situations you are definitely need a translate person so only you can understand what the particular person saying for example you see any tourist guy he knows maximum all language because all country people should come to the vacation that kind of the periods he will explain about what he willing to know details since this type of times the translation should be needed nowadays so many people knowing so many languages because people should be travel through all over the world.