Same! I always thought I was alone in feeling this way. When I first heard the phrase "baby names", I first understood it as that: a name used for people while they are still a baby. I was confused for many years until I realized that it was just a query for popular names for your newborn. I feel there should be a more descriptive phrase for it, or simply refer to it as name popularity. I'm not familiar with a culture where people legally change their name as they get older, but I don't think it would make a statistical dent. Almost all people keep the name they are born with, correct?