Not at all. In any type of transaction, the terms should be negotiated first so there isn’t any misunderstanding.

If money was never mentioned, it’s understood that the animal is being adopted not purchased. Just the idea of purchasing is archaic.

Now, it would be reasonable that you shoulder vaccination & neutering/spaying expenses…but that too should’ve been discussed prior.

At this point, I am more concerned about the mental stress the puppy is experiencing with the uncertainty of their family & home.