I think that age as a number is not nearly as important as health. You can be in poor health and be pretty miserable at 40 or 50. If you're in good health, you can enjoy things into your 80s.
Cloning looks like a degrading of parenthood and a perversion of the right relation between parents and children.
If the arts are held up solely as a means of social insight, fantasy is denied the chance to be commonplace and reality the chance to be exotic.

