We picked a name that jumped hugely in popularity from late 200s to top 100 and climbing, which did slightly annoy me, though to date I've only met one other baby with the same name and know of one more through an extended friendship group.
Something I really hadn't accounted for though, until I got to baby groups, was how even though her name might not be that common, its very much of a type. All the baby girls I know near where we live, who are likely to be in the same school, have relatively short names that end with 'a'.
So: Aria (x2), Mia, Ava, Ella, Maya, Luna, Mila. (There is literally one Robyn, who is an outlier!) So despite there being on paper nobody else with the same name, in reality the names are so similar that it feels to me sometimes like they all have variants of the same name and its even worse than if, say, there were two Sarahs but everyone else was Rebecca and Karen and Claire and Jennifer. Its funny because even though I read all the data I didn't really pick up on that until I was in a room with a load of other babies. It even applies to my extended family: two of my cousins have recently had a Pia and an Eva. So I guess my main learning is on some level, even when trying to be somewhat unique, we're more like sheep than we may want to believe!