Very likely. But just to point out that there are other reasons that people drop off from the martial arts and do other things; I delivered papers for several hours a day rain, snow, sleet, or shine, on a bicycle in the mornings when I was a kid, cut lawns all summer regardless of the temperature, and rode thirty miles a day, every day, rain, sleet, snow, or shine, because I wanted to compete in BMX at a higher level and later had visions of competing in the Tour De France. I practiced my "karate" everyday indoors for about a half hour to an hour a day. All that on top of school and a part time job. By Junior year of high school, I had proven that I could defend myself, which was why I started taking "Karate" (it was TSD for a year and then TKD for a couple of years, and then Shotokan in high school) in the first place. I never tested for a black belt; I was able to defend myself. I had reached my goal. I stopped formal training regularly about two years after I got out of high school (I was back in TKD by then), but I attended simply to train. I wasn't interested in a black belt and I had gotten into fencing by then anyway. Cycling was a huge part of my life and eventually, fencing replaced karate, but neither one ever trumped cycling. I got into hot rods in high school because my folks wouldn't allow me to by a motorcycle, and by the time I was ready to explore that again, I was married with a son. I eventually got back into formal training in taekwondo 2005 and got into hapkido in 2008 (I think). I got my black belts. I also eventually did explore motorcycles again in 2011, got my license in 2012, and bought my first Harley Davidson (96 Superglide) this year. And I have been teaching kendo and participating in fencing on some level consistently for a while now. I still keep my HKD and TKD chops in practice, but it isn't my main focus. None of that is a reflection on where I trained; it is simply the direction that my life has gone. I have a student who is fairly good in kendo, but he's also a hot shot tennis player. Guess what he's practicing outside of class.