Hope not! I have one, she was born last year. I had lots of compliments on her name when we announced it. I think it's beautiful and I haven't met another yet. It's reasonably popular - ranked no.25 at the moment. But if you look at the stats, it's actually falling down the rankings - highest it got was 21 in 2017 I think. It's not one of those names which has appeared from nowhere and then shot up in popularity, like Isla for example - it's been in the top 100 for a while and so I don't think it will date as badly. I think it's a bit of a marmite name too - some people really hate it, so I don't think it'll ever reach the same level of popularity as more 'pleasing sounding' names like Evie or Lily. I reckon it's unlikely that they'll be more than one Phoebe in a class of 30, but they'll probably be another one or two in your standard secondary school. Personally I see 'overdone' names as ones like Evie / Eva, Amelia, Sophia, Isabelle etc.