My parents live with me and I recently moved my 11 year old niece in to my home due to some domestic issues in her house. For starters, my dad has always been a bit of an a$$hole. But he seems to detest the ground this little child walks on. He hates the fact she’s a picky eater, which isn’t her fault when all she got fed was fast food and chips. He yells when she goes in and out of the house playing, but he’s constantly in and out too!! He seems to even hate her laugh, rudely telling her to hush if she giggles at a volume that he thinks is too loud! I have directly called him out on his behavior but he denies he is being cold toward her. Someone, please tell me why old men are so GROUCHY!! Her feelings are hurt by his attitude toward her and I can’t help her understand this is how he always is. Does anyone have any experience with a situation like this??