True, our clothing doesn't distinguish us from other staff. But here, we all introduce ourselves to our patients each morning and tell them, "I'll be the RN caring for you today."
I'm a manager, but if I happen to go in to hang an IV for someone when I'm wearing street clothing, I stop and introduce myself as the manager and an RN to reassure them that it's okay for me to mess with their IV.
I don't do caps, I don't do white, and I definitely don't do starch!! Nor do I expect that of my staff. I do, however, expect professional conduct.