To echo this somewhat, I remember when I first started TKD and was testing, there was a pretty good group of us that were training and testing together. I remember the kid that convinced me to start coming to class with him; he eventually fell away from it and I stayed. I remember when I finally tested for my 1st degree, there were two other guys that tested with me; three of us from the large group that was going through the ranks together made it to the black belt testing. Now, as far as I know, I'm the only one of us that is still active in the martial arts. I've heard it said that of the people who start the martial arts journey, 10% maybe make it to black belt. Then, it's another 10% die-off that make it to 2nd dan, and so on. I don't know if the 10% number is accurate, but the fact that the ratio keeps decreasing is true; I've seen it, as I'm sure everyone else here has. It's kind of saddening, to know those colleagues I had fell away, and they were way more talented than I ever was. But on the flip side, I'm proud to have persevered.