The Fear of Public Speaking

I don't understand why people are so afraid. I just think we give way too much importance to other people's words and opinions. We've got to a point where people are fearful of a Twitter backlash, well, turn your phone off. That stuff isn't real. Do you know what? In my entire life, not one person, not one, has ever come up to me on the street other than to say, well done, congratulations, keep going.