scared driver delight, it sounds like you never even learnt public speaking to begin with. If you did, you would know why it’s so important and why it’s an important skill to have. I’ll give you an example. Look at Obama. He has some crazy views. However he has influenced thousands of Americans that his way is the right way. How? Through the way he speaks. The speeches that he has given has influenced thousands of Americans that he is the right man to run the country.
I’ll give you another example. In the Book “Rabbi Sherer,” it describes how Rabbi Moshe Sherer zatzal was able to influence political figures to change the law so it coincided for halacha and so it would be better for the Jewish people. How did he do that? Through public speaking. He was an amazing speaker and was able to influence political figures that the Jewish people are important and you need to accommodate them.
For us, public speaking is relevant as well. If someone got up and couldn’t speak in complete sentences you wouldn’t even listen to him. People would yell at him to get off the podium. If there are non jews there it could be a chillul Hashem that this person doesn’t know how to speak. (If there are only jews there, it could be an even greater chillul Hashem.)
I have no idea if you’re a man or a woman, but how do you expect to say a dvar torah if you have no idea how to speak?
Therefore, public speaking is very important-to know how to influence people and also if you want people to listen to you, then you have to learn how to speak so people can follow you and listen to what you have to say.