GKR Karate is nothing but a pyramid scheme. It encourages people to give up their jobs to go knocking on doors to recruit new members.
The Karate is sports based and very watered down but they sell it as teaching you self defence.
I know several people who have lost theis marriages because of these people. They get you to do more and more promising you the earth but the truth is the only people who earn are those few at the top. I lost my house because of these people.
They lurk outside job centres to recruit people to go door knocking. Please don't get fooled by these con artists.