I'm going to talk using my own experience as a example. When i begun on the martial arts, i wanted to learn self defense, martial arts to me were something really really great and i wanted to be involved into that. When i was studying , i started to be too much concern about Belts.. I wanted to have at least 3 Black belts in diferent systems.. I started to reserch on other styles and so. But I was too busy Looking the Belts that at one point i realized that i wasn't training hard enough.. I use my time to dream on how cool it was going to be when i had Several black belts that i didn't realized that i wasn't progresing as a fighter and as a martial artist. Now, i decided to not concern anymore about Belts.. only about training and knowlege , and let me tell you.. When you don't feel tied to a style, that allows you to REALLY learn other styles, to study better, to become a much better fighter and you feel open to learn any new technique. Now, im a free style martial artist, and Im learning from everyone And i don't feel confused with the diferents styles. Also im learning a lot about philosophy for combat and for the life. Like you said, in order to open a school you may need some certications, But as my Training partner and instructor said, " once you know all you need to know, and you are a good fighter and you are in shape , believe me that belts and certifications will come alone".. I can't be more agree with him. I've been in the arts since 1986 and i feel NOW im starting to learn the True of the Martial Arts. It's just my opinion, thanks.