1. For people who can not talk is difficult because they nave to find other ways to communicate and most of the time people do not understand this difficulty.
2. For people who do not know how to read is also difficult because reading is present in our day to day and it is very important when we will sign some documents and etc.
3. People who do not know how to write have difficulty getting jobs to communicate through documents and etc.
4. We can communicate by gestures, but we do not communicate as well as by words.
5. We have problems of undestanding in verbal language.