Is it really that crazy? That's like saying that I should expect to live to 120, because it's been done before. And, I should ignore the expected lifespan num

Is it really that crazy? That's like saying that I should expect to live to 120, because it's been done before. And, I should ignore the expected lifespan number. Maybe healthy lifestyle choices will increase my lifespan. But, to expect that I should be a statistical outlier seems risky.