Is wearing thong underwear under a short skirt common?

I was having a debate with some friends over whether or not wearing thong underwear under a short skirt was common behavior... I do it all the time and see nothing wrong with it. In the locker room a friend noticed I was wearing one under my cheer uniform to class and told me it was a bad idea and that no girl would ever do it... I said that there was nothing wrong with it so long as you keep it under... What are some other people's opinions on the subject? Thanks!
Is wearing thong underwear under a short skirt common?
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