Its just like being a fishing guide. A captain's license does not qualify a person to take money in exchange for a fishing trip. Its a matter of opinion as to whether someone is a good guide or a good trainer. There are trainers with amazing track records that I would not let pet my dog. Likewise, there are guides that can out fish most guides that I wouldn't give a penny to for a trip. The thing that qualifies a person to be a pro trainer is their ability to get people to pay them for their services and to come back and recommend that trainer to others because they are pleased with the outcome.
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