Fun facts discovered through fanfic writing research: Shanks was approximately ten when he participated in the Battle of Edd War as it was about 25 years before the start of the series when Shanks is 35.
If Buggy’s the same age, not wonder he was scared back then!
Shanks was also only about 15 when Roger died and he started his own crew. Dude was the original supernova with that age!
(Hipster Shanks: I was a teenage threat to the world government before it was cool”)
On the other hand, when he was trying to dissuade Luffy from being on a pirate ship at such a young age, maybe he was speaking from experience…
Now I’m just trying to figure out when he became an Emperor, if it’s before he met Luffy then it’s before he was 25!