Education, education, education...
Having had cats declawed myself, in the past, I have found that hardly anyone tries to educate the prospective owners about training cats to posts. I am a true believer that most cats would prefer a post to the sofa! Please try to educate these folks when you turn them away. There will just go on to the next person, get the cat, declaw etc.
There is such controversy about declawing and I know that from time to time it comes up here. Lots of people declaw cats. Does that make them bad people, no, it makes me believe that no one ever offered them an alternative to declawing. Maybe you can find a way to give away scratching posts with the cats.
Please don't be so harsh on people who have declawed their cats. I just know that they didn't do it to be mean, just to save their furniture and not be constantly yelling at their cats.
One of the other things you can do for your kittens and cats is get them used to having their nails clipped - show the prospective owners how to do it and then show them how to train the cat to the post....and show them how you have AlREADY trained them...in preparation.
Declawing is expensive and I suspect people would rather not do it....just give them the education please!
Thanks for listening!
SAS
P. S. I am not convinced that cats even know that they don't have claws, when they have been declawed. They still use the glands under their paw pads and often keep scratching away, sans the claws!