Random black belt question

[Montana]

Does anyone know what's the youngest age a student ever attained a 5fth degree black belt, in any art?

Just to add.

It would take a absolute minimum, if the minimum time between gradings was observed 17 years to go from white belt to 5th Dan. so if they started at 1 year old the youngest would be 18.

anything less than that is a shambles

Show me a 18 year old 5th Dan and I'll show you a belt factory.

[sensei8]

Does anyone know what's the youngest age a student ever attained a 5fth degree black belt, in any art?

Any art? Or just a viable art? Big difference, imho. The quest is not the belt, just the absorbancy of knowledge.

In Shindokan, our Soke, never entertained that type of preference because "...at what age one is whenever one attains any rank is minimum of concern. The obi is an outward decoration, it's what's inside the martial artist; that's only to be seen during battle."~Soke Saitou.

But to answer your question....I've no idea!