The age requirement of 20 is the legal adult age in Japan, which is where my company is incorporated.  The no credit card debt policy is for ethical reasons. Be in a stable financial position before coming to this.  The no injuries or medical conditions that prevent training requirement is there to set professional boundaries of my expertise of what I can and cannot advise on.  The training experience requirement is there because online coaching is not suited to novice trainees who may have issues with their form or have trouble pushing themselves hard in the gym.  I don’t work with anabolic steroid users because I have neither the knowledge nor desire to go into this area. I have nothing against people that choose to use them, but once someone has chosen to do so, the solution to plateaus is to use more drugs, not to figure out what is wrong. This does not interest me at all.  I insist that clients don't email me from their phones because on the rare occasion that a client has left my services unhappy, it was due to a communication breakdown. The root cause has often been a phone.