Let's see your favourite royals at 21

A trending Instagram hashtag inspires this nostalgic weekend post from Ainhoa

Hi Royal Clubbers,

You may have seen the Instagram trend that's been doing the rounds this week – people sharing photos of themselves aged 21.

"Everyone tap in. Let's see you at 21" posts have been popping up on my feed and they've brought back very fond memories of travelling and university days.

We know that some of the royals have their own personal – a…