I had assumed (perhaps incorrectly) that by reversing age, that most of these age related ailments would be cured. I'd be willing to bet that would be the case for a large number of them. I'd also be willing to bet that the natural pessimism and inflexibility that is typical in old folks is just a result of fading memory capacity and reduction in plasticity of the brain, which I also bet would also be remedied by reversing aging.
I think we're ready, at least i know I am eager to have the body of a 25 year old for the next 1000 years. On the other hand, if I have to live 900 years in a wheelchair, then maybe death is the better alternative. I might stick it out for another 50 or so just to see if they kinks get ironed out.