my 4 year old granddaughter now knows nanna is dying and will be leaving her, she understands what this means on her level, she had a fish (santa claus, marydidyouknow, and oscar, whom shenamed) died last fall. She didn't want more becasue she didn't want to be sad when they died too. So now it's nanna. SHE'S ONLY 4!!!! She isn't supose to have to learn this yet.