Gray Belt

[KarateKen]

Was watching an old episode of Matlock where Don Knotts claims to have a Gray Belt in Karate, something about a belt specifically for senior citizens.  I assume this a just for entertainment, but has anyone heard of a gray belt rank? Or what special rank exclusive to those who are seniors? I never have. 

[sensei8]

From time to time I’ve seen the gray belt, but not often. I’ve seen it used as an intermediate to senior level in Wado, Goju, and Shotokan at open tournaments, but if course, not all of those styles use the gray belt. 

One more thing, some BJJ use gray right after white.

Edited 6 hours ago by sensei8