Cool. Tell that to my 35 year old friend who died of cancer last year. Or, better yet, the baby of a family friend that was born with brain cancer. You might have had a hard time getting her to hear you with all the screaming in pain she constantly did until she finally mercifully died before her first birthday, though.
Cancer is just aging like dying from tetanus or rabies is just aging. On a long enough timeline everybody eventually steps on a rusty nail or gets scratched by a bat.
If you solve everything that kills you then you don't die from "just aging" anymore.
If not for everything else that kills you first, then tetanus and rabies is an affliction of the old.
But of course it's not, because we have near-100% cures for both. Just like we should have for every other affliction, which would make being old no longer synonymous with being sick and frail and dying.
How exactly do you wish death comes to you?