The only way to truly answer your question is to understand what you mean by the terms 'breeder' and 'pet cham'? In my mind there really should be no distinction. We're not talking about show ponies here.
If by 'pet cham' you mean a cham that enjoys being handled and likes to sit on your lap whilst you watch football games, then you probably have a misconception about the kind of creature we are dealing with here. Chameleons are always display animals - not 'pet' type animals no matter whether you are breeding them, or simply keeping them for the enjoyment of having a magnificent creature like this in your house.
So help me out here, what do you foresee the problem being with your friend wanting to convert this 'breeder' into a 'pet'?