human
My grandfather is 72 but is always blunt and rude to his family since nobody ever stops his boorish behavior out of tolerance for his old age. For example, several months ago, when I showed up to his birthday with a nice makeup he said I looked like a "ho", I was furious but he never said sorry. I'm still not talking to him and think he is an old ass.
assistant
Well firstly, it's not unusual for elderly people to be generally more blunt or more interested in the past than the present, but that isn't a good excuse for his behavior. If it is simply a question of him having forgotten to say sorry, or him having forgotten to stop being blunt, you might want to give him the benefit of the doubt and withhold judgment.