CPThere's no such thing as a "professional" dog trainer. A four year old teaching her puppy how to sit is recognized as a dog trainer as much as a Cesar Milan. Therefore, there are no requirements on what a dog trainer is.
Regardless, as a dog trainer I'm not hiring you for what you can train your dogs, I'm hiring you to help train me and mine. Big difference.
I understand your reply, a simple rule of thumb is that a professional anything is the step up from amateur anything to somebody that makes that actually makes money from the service. Whatever the service happens to be.
"Engaged in a profession or engaging in as a profession or means of livelihood"
I'm not getting into the multitudes of certification/licensing etc that I know you hope for in the future. Just stating that there are creatures known as professional dog trainers in this world, licensed or not.
I have stated this many times that there is only one way to learn dog training and that is to train as many dogs as possible. Licenses, certificates and all that entails is super and when you start actual hands on dog work you can let the different dogs to be trained read your certificates and go on from there.