I don’t want to live longer than a natural human lifespan. When I was younger and immature I did, but I’ve outgrown that. Death is as natural a part of life as birth.
I think early death is bad in the general case.
Life expectancy has changed a lot. In 1900 the life expectancy was around 40. A while before that it was 30. What will it be if we cure cancer, alzheimers, dementia, heart disease (the main killers of "old age")?
This sounds like you've just accepted that death is inevitable and you might as well not fight it, which is fair, but that's quite different from not wanting to live longer if the opportunity was available.