What are their Coaching Qualifications?
In Australia, most major sports work with the Government to develop the best people to become professional coaches to grow their particular sport. Most Martial Arts and Karate Clubs are required to do the same through their Martial Arts organisation.
For all types of Karate, you have to be registered with the AKF (Australian Karate Federation) and as part of the AKF you are required to do their sports-specific Coaching Course if you are an instructor.
Before choosing your instructor, make sure they’re registered and qualified. This includes the club too, which ensures the club has met a set of standards required by the Government body. Things like meeting legal, safety and training requirements, that are in you and/or your child’s best interest.