K.M.
I recently had to put my 17 year-old cat down too & my daughter is 4. I didn't say anything at first until she noticed she was gone, which was a couple of days. There would have been no way of telling her right away, & as it was I had to have dad explain it because I knew that I couldn't make it without breaking down. He did really well, & then she ran to me for me to hold her. He just told her that the cat was really sick (which my daughter already knew she was) & that she went to heaven. It made her feel better telling her that their was a heaven for cats & that she would get to play with other cats & not be sick anymore. She also wondered if she would still get her treats & where would she sleep & all sorts of questions like that. We did the best we could there. We didnt say anything about putting her to sleep or anything. I think that would have been confusing to her. I think that was the best way. She sometimes tell people that she doesnt live with us anymore & that she is in heaven