Some people look down on garage training. They think a “real” martial arts school should have a well-equipped dojo with heavy bags hanging from the ceiling, weapons on the walls, and thick mats on the floor.
That’s all good. But no one should ever look down on garage training, and no student should be embarrassed to study in someone’s garage or home. Some instructors are traditional, and prefer to teach only family or individuals they know and trust. They do not promote their arts. A student should consider it an honor to be allowed to train in an instructor’s home.
Many instructors teach out of their garages, or at the park, because their primary pursuit is the art itself. These types of teachers are obsessed with learning and honing their abilities. They don’t want to invest their time in running a studio, doing paperwork, marketing and sales. They would rather focus on training and even traveling great distances to learn from other masters. Instructors like this can be the most gifted martial artists around, even if no one knows their name outside of a small circle. Bobbe Edmonds comes to mind, or the legendary Professor Wally Jay (who taught in his basement, and was scorned by other masters for years because of his innovations to Japanese Jujitsu).
More here – Hammerhead Martial Arts.
PS: From my perspective I would never go back to a traditional school.