Picture all of the situations in which you need to effectively communicate on a daily basis. From ordering pizza over the phone for your friends to calling up an airline to purchase tickets for your next family vacation, communication skills are needed to make sure your point gets across properly to the other party. If they misunderstand you, your pizza might end up with an undesirable topping or your trip booked for the wrong date.
Whether you are applying for jobs or trying to better yourself at your current position, correct pronunciation comes into play. Interviewers will want to see that you have a grasp on the English language so that you can communicate with clients and understand the assignments being given to you. Once you secure the position, the boss will want to see that you are continuing to sharpen your skills in these fields to help the company.
Getting to know other people in your church, school, town, etc., can be quite difficult if there is a strong language barrier there. They might not know what you are saying and vice versa. Using correct pronunciation of words will help you tell the potential new friends about yourself, as well as make accurate plans to spend some time together outside of a formal setting. Through correct pronunciation, you can tell them about your traditions, culture and so forth.
Whether you are the teacher or the student, correct pronunciation is important. As a teacher, you must lead the students by example. Therefore, using correct forms of speech in the classroom is integral to both your and your pupils' success. Students want to use correct pronunciation not only so they can receive high scores on oral examinations, but also to act as a role model for younger students and participate constructively in classroom discussions.