I was 12 when I first started Jukido JJ... and, after moving away from CT... I wandered the path, trying to find a style (Uechi Ryu, EPAK, Bujinkan) that "fit" me, until I was almost 21...
Except for a few breaks here and there... I pretty much trained straight into my early 30's... then, due to getting married, working shift-work, and then owning my own business... I fell out of my routine... and stopped training on a regular basis...
Now, at 39 (I'll be 40 in Feb)... I'm starting back into things again...
I'm hoping to start back to my TSD classes (I'm a 3rd gup) in a few weeks... once I get settled into the new j-o-b... and have set the goal of acheiving cho dan bo in the next two-years...
I also plan on contacting Guro Sal from Cebu West so I can get back into a regular Modern Arnis training schedule... as my Guro (Chad D.) had to move out of the area for his new job...
Your NEVER too old to start in the MA (IMHO)... Heck! We had a guy in his mid to late 60's testing for 1st Dan a few years back... and he not only passed; but, he's now a 2nd Dan at almost 70!
TANG SOO!
So, don't worry about the age you start training at... just worry about the training...
Best Regards,
Andy