Hm, really? Sure, I hope to get older, but I don't really make great plans for life in my 70ies. While life expectancy might be higher, I know people who died younger, and many who are 70 and not in the greatest shape.
Edit: Not sure why this would be down-voted. It's a quote from the King James Bible with a source reference that supports the notion that 70 years is about all the time we as humans have to live life in good health. It is relevant to the article as it lines-up with the 35 years old, "half of my life" claim as well. People do live longer than that, but quality of life and good health tend to go down a lot in the 70s.