Most commercial karate School , will sign you up to a contract, before your leave. I agree with most. #5 depends on the age group you are teaching and the type of games you are playing. I play games with my 4, 5, 6 years olds, or so they think. I just turn the karate in to fun and games. This does not mean they learn less. #4 Don't agree with at all, as some schools run there own inter club comps and that is also a commercial thing.