I hope not, but I could see myself becoming a curmudgeonly dotard, more content to be around books and cats than people. Then again, I'm kind of like that already. :D
I hope not, but there's no way to tell. I realized that next month, I will be only four years away from being 80 - a venerable age. Having young-ish nieces and nephews keeps me on my toes, so I don't believe I think like a doddering old fool. I try to keep up with the world around me.