Don't some schools make you wear one bar ..? Erm, I'm struggling to think of the exact example but an ops chap I was talking to at an interview said he was terribly embarassed in the States being made to wear "one bar" and then returning back to work in Ops with the "real pilots" at work - he had no wish to wear one silly bar but was made to in accordance with the place he was training at, to show he was a stude.
I'll agree with the majority though - it's not the military, so just don't if you can help it all!!