"Remember, you're an aged college student now..."

Looking back on a college orientation session from 1989, the way a moderator attempted to make us feel more like adults amuses me.  It wasn't sufficient for each incoming student to choose a seat in the lecture hall and sit down.  Instead, she had to guide each of us to a seat while addressing each one of us as "Sir" or "Ma'am."  I didn't say anything at the time, but I thought, "I'm pretty sure I'm 18, not 98."  However well-intentioned her gesture was, it struck me as odd and unnecessary.