What a Character in My Book Would be Like as an Old Person

The person I am choosing to write about is Nick. I am choosing this because, as an old person, he would be very sarcastic and funny. I like him so far in this story and his personality is entertaining. As an old person, with grandchildren and the such, he would be funny. I think towards his children he would be funny but he would also be responsible and a little strict. He seems like the type of person who gets things done while having fun at the same time. He would be a lot more youthful than his age would reveal. I think that he would be somewhat close to his family while maintaining a distance. His family would enjoy his presence and like being around him. I think that he may be lonely due to the fact that he cheats and isn't loyal so he may not have a family. He has a good personality he is just caught up in stress.