Apparently it is possible to guess your age from your name.

Helen mentioned names from the natural world. In the UK if your name is Iris or Rose you are likely to be older than someone called Heather or Fern.

There are few young Ednas, Winnifreds, Ediths, Walters or Fredericks. Younger names seem to come in waves. We had a spell of Sharons and Kevins followed by Justins and Jasons followed by Kylies and Joshes but have now reverted to Charlies, Williams, Charlottes and Emmas.

Compared to the USA, we use relatively few names, apparently a huge percentage of boys are given names that are in the top ten for the year, a smaller proportion (but still a significant number) of girls are given names in the current top ten. Hence the ability to make a reasonable guess at the age of a person, given their name.

Celebs have had their own rules since Zowie Bowie, Fifi Trixibelle (Bob Geldof & Paula Yate's eldest) and now the Spice Girl offspring Brooklyn (good thing he wasn't conceived in Scunthorpe) and Phoenix, perhaps the UK equivalent of Chelsea.