For years I have resisted using self-checkouts. Part of it is that I prefer to interact with someone, but it is also partly due to fear. I was scared I wouldn't know how to use them. I finally used one the other day and it went fine. I didn't embarrass myself, sirens didn't go off, people didn't stop and point and shout "Look at that person who doesn't know how to use a self checkout." The world didn't end, and now I feel slightly less anxious about doing things I have never done before.