Hi, I'm a newbie on this forum too. Glad you got through the door of a dojo, I came through the same method. I'm a GKR student and I know it has its critics - many of them - and having seen the club at every level (the business side too, years ago) I know there is good and bad there, but I enjoy the karate and it suits my lifestyle. However it is not true that you 'have' to teach to progress. In the class I currently train in, last night there were 5 black belts in line with me who have never taught (and four others at the front who do, obviously). This was not the 'senior class' but a public class in a region that has been going for just over a decade. I gave up teaching in 2004 due to an unrelated injury and had a long time out, then came back and eventually gained my 1st Dan as a paying student without any pressure to go back to the front, as it were. Hope that helps!